Answer:
a) Porosity
Explanation:
Porosity or void fraction is a measure of the void spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%. Strictly speaking, some tests measure the "accessible void", the total amount of void space accessible from the surface.
Rain is an eternal process benefiting mankind. Contrast it with human life which is short lived on this earth. Should we disturb these eternal elements of nature?.
Rain is indeed an essential and eternal process that benefits mankind in various ways. It plays a crucial role in the water cycle, which helps to maintain the overall balance of our ecosystem. Rainwater replenishes freshwater sources such as lakes, rivers, and underground aquifers, providing a vital resource for drinking, irrigation, and other essential purposes.
Contrasting with the eternal nature of rain, human life is relatively short-lived on Earth. While rain continues to play its role in sustaining life and the environment, individual human lives come to an end after a certain period of time.
When considering whether we should disturb these eternal elements of nature, it is important to acknowledge that human activities can have both positive and negative impacts on the environment. While some disturbances are necessary for human survival and progress, it is crucial to strike a balance and minimize any negative consequences.
It is our responsibility to respect and preserve the natural processes and elements that benefit mankind, including rain. By adopting sustainable practices, such as responsible water usage, conservation efforts, and reducing pollution, we can ensure that we do not disturb these essential elements of nature beyond what is necessary for our well-being.
In summary, while human life is short-lived compared to the eternal process of rain, it is important to be mindful of our impact on the environment. We should strive to preserve and protect these eternal elements of nature to ensure the sustainability and well-being of future generations.
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immune thrombocytopenic purpura (itp) is caused by: group of answer choices a vaccine-induced hypersensitivity reaction against platelets. viral-induced hyperproliferation of platelets. antibody destruction of platelets in the spleen. drug-induced platelet toxicity.
Itp, or immune thrombocytopenic purpura, is brought on by antibody destruction of platelets in the spleen. The correct answer is (C).
Immune thrombocytopenic purpura (ITP) is a rare autoimmune disorder in which the immune system destroys blood-clotting platelets, preventing a person's blood from properly clotting. Although the exact cause of ITP is unknown, it is thought to be caused by a malfunction of the immune system that may be brought on by viral infections.
Idiopathic thrombocytopenic purpura (ITP) is a condition characterized by a non-blanching purpuric rash brought on by idiopathic (spontaneous) thrombocytopenia. A type II hypersensitivity reaction is the cause of ITP. The production of antibodies that target and destroy platelets is the cause.
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Q- Idiopathic thrombocytopenic purpura (ITP) is caused by:
a. a vaccine-induced hypersensitivity reaction against platelets.
b. drug-induced platelet toxicity.
c. antibody destruction of platelets in the spleen.
d. virus-induced hyperproliferation of platelets.
ASAP hello please help i’ll give brainliest
Answer:
A
Explanation:
So immediately you can take out dead and nonliving. I think critically makes sense because bees pollinate and make plants, so A.
while walking on a hiking trail, you notice a yellow flower and you see that it has around 15 petals, is about 2 meters tall and that the leaves of the flower has a complex/netlike venation; what kind of angiosperm is it?
Based on the characteristics you provided, the yellow flower you observed on your hike is likely a dicotyledonous angiosperm.
Dicotyledons, also known as dicots, are a group of flowering plants characterized by having two cotyledons (seed leaves) in their seeds, as opposed to monocotyledons which have only one cotyledon.
The features you mentioned, such as the presence of approximately 15 petals, a height of about 2 meters, and a complex or netlike venation in the leaves, are common traits associated with dicot plants. In general, dicots have flower parts in multiples of four or five, their leaf venation is reticulate (netlike), and they often have taproots.
However, identifying the specific species or family of the yellow flower would require more detailed information, such as the shape and arrangement of the leaves, the structure of the flower and its reproductive organs, and the presence of any unique features like fragrance or specific petal shapes. It's also important to consider the geographical location and habitat of the plant, as these factors can help narrow down the possible families or species.
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what are the scientific steps involved in deducing the result
Answer:
Form an explanatory hypothesis. Test the hypothesis by performing an experiment and collecting data in a reproducible manner. Analyze the data. Interpret the data and draw conclusions that serve as a starting point for a new hypothesis.
The allele for purple flowers masks the allele for white flowers in pea plants. A true-breeding pea plant with purple flowers is crossed with a true-breeding pea plant with white flowers. Which statement reflects evidence of the law of segregation in the offspring?
A. The F₁ generation will have only white-flowered plants, but the F2 generation is likely to include both white-flowered plants and purple-flowered plants.
B. The F₁ and F2 generations are likely to have equal ratios of white- flowered plants to purple-flowered plants.
C. The F₁ generation will have only purple-flowered plants, but the F2 generation is likely to include both white-flowered plants and purple-flowered plants.
D. The F₁ generation will include more white-flowered plants than the F2 generation.
The statement that reflects the evidence of the law of segregation in the offspring is as follows: The F₁ generation will have only purple-flowered plants, but the F2 generation is likely to include both white-flowered plants and purple-flowered plants (option C).
What is Mendel's law of segregation?Mendel's law of segregation states that during the formation of gamete, each gene separates from each other so that each gamete carries only one allele for each gene.
This is the second law of Mendel explaining that the gene for flower colour in this question will separate into gametes with each containing only one allele for each gene.
This means that after the cross, only the dominant allele (purple colour) will be expressed in all the F1 offsprings. However, there is likelihood of recessive allele (white colour) being expressed in the F2 generation.
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snarls of threadlike strands that extend from the nerve cells, commonly found on the brains of people with alzheimer’s disease are called . quizlte
The snarls of threadlike strands commonly found on the brains of people with Alzheimer's disease are called neurofibrillary tangles.
Neurofibrillary tangles are abnormal accumulations of a protein called tau that form twisted threadlike structures within nerve cells.
These tangles disrupt the normal functioning of nerve cells and are a hallmark pathological feature of Alzheimer's disease.
The accumulation of neurofibrillary tangles contributes to the degeneration and eventual death of nerve cells, leading to cognitive decline and memory loss.
The presence of neurofibrillary tangles is one of the key diagnostic markers used to identify Alzheimer's disease during postmortem examination of brain tissue.
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Which best describes the processes of mitosis and meiosis? Cells in mitosis go through the PMAT stages twice to produce diploid cells while cells in meiosis go through PMAT stages once to produce haploid cells Cells in mitosis and meiosis go through the PMAT stages twice to produce haploid cells. Cells in mitosis go through the PMAT stages once to produce diploid cells while cells in meiosis go through PMAT stages twice to produce haploid cells. O Cells in mitosis and meiosis go through the PMAT stages once to produce diploid cells.
Answer: Cells in mitosis go through the PMAT stages once to produce diploid cells while cells in meiosis go through PMAT stages twice to produce haploid cells. (3rd option)
Explanation:
Cells in mitosis go through the PMAT stages once to produce diploid cells while cells in meiosis go through PMAT stages twice to produce haploid cells.
Mitosis is a process by which a single cell divides to produce two daughter cells. In diploid (2n) organisms, somatic cells contain two copies of each homologous chromosome, thereby mitosis will produce two identical diploid cells. Mitosis consists of four phases: Prophase, Metaphase, Anaphase and Telophase.Meiosis is a process by which a single cell divides twice in order to produce four cells with half the original amount of chromosomes, it is for that reason that meiosis is recognized as a reductional division. Meiosis is divided into meiosis I and meiosis II. The phases of meiosis I include Interphase I, Prophase I, Metaphase I, Anaphase I, Telophase I, and cytokinesis; whereas the phases of meiosis II include Interphase II, Prophase II, Metaphase II, and Telophase II, and cytokinesis.During meiosis I, the chromosome or chromosomes duplicate their genetic information (S phase of the interphase I) and subsequently homologous chromosomes exchange genetic material during prophase I. In diploid organisms, these two daughter cells generated by meiosis I divide again in meiosis II in order to form haploid (n) gametes.Learn more in:
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In an experimental study of the effect of copper deficiency on coat color in bicolored juvenile rats, the independent variable is?
Answer:
amount of copper
Explanation:
The independent variable would be the amount of copper fed into the experimental rats.
An independent variable during an experiment is a variable whose value is not dependent on any other variable being measured in the experiment.
The value of an independent variable is not changed by any other variable in an experiment. In actual fact, the effect of the independent variable is being tested on other variables (dependent variables) in the experiment.
Hence, in an experimental study of the effect of copper deficiency on coat color in rats, the amount of copper fed into the system of the rats will be varied and the effects of this variation on the coat color of the rats would be observed by measuring relevant variables. Therefore, the amount of copper is the independent variable.
1. Discuss the importance of each of the following edaphic (soil) factors to living organisms. Water, Air, Mineral nutrients
The edaphic factor includes a range of proprieties of the soil, physical, chemical, and biological that are result from biological and geological phenomena. In the case of living organisms, we have those chemical and physical properties, such as minerals and water, as well as soil aeration influence ecology and evolution of plants and in consequence, associated biota, this is because plants are the base of the food chain as well as pioneers in many cases of ecosystem structure.
Following this line of thought, we have that soil is very important, factors as simple as the consistency, very different sand from mud, impact texture and chemical composition, and in consequence the type of organisms that can settle there, we can see that in deserts (sandy soil, limited water, good nutrients), the type of plants that grow have certain characteristics, for example, they live with very few water, and in turn, they provide refuge and food for other animals in the desert, on the other hand, we have places like confers forests, where the soil is rich and water is available in the subsoil, also tend to be mountainous sites, those plants are adapted to other conditions, their roots retain soil preventing erosion, also the kind of animals that depend on them are different.
Which sentence describes how the endoplasmic reticulum and Golgiapparatus work together?A. The endoplasmic reticulum provides instructions to the Golgiapparatus for making proteins.B. The Golgi apparatus receives proteins from the endoplasmicreticulum that it can modify or store for later use.C. The Golgi apparatus and the endoplasmic reticulum produceproteins that are then sent outside the cell.D. The endoplasmic reticulum produces usable energy that the Golgiapparatus uses to make proteins.
Cell Biology: Parts of the cell. Organelles.
The endoplasmic reticulum is an organelle found just outside the nucleus that is made of several interconnected cisternae, which membranes are continuous with the outer nuclear membrane.
It has two sections: the rough endoplasmic reticulum, which has ribosomes on its surface, and the smooth endoplasmic reticulum.
Basically, the endoplasmic reticulum synthetizes proteins and membrane lipids, and then sends them to the place that needs them.
In turn, the Golgi body or Golgi complex is a different organelle that is also made of cisternae, and where the proteins sent from the endoplasmatic reticulum are processed and modified before reaching their final destination.
This means the correct answer would be B. The Golgi apparatus receives proteins from the endoplasmic reticulum that it can modify or store for later use.
If the left side of the beaker has a greater concentration of urea than does the right side, what statement is true?A. Water will leave the left side of the beaker by osmosis and join the right side of the beaker.
B. Water will be exchanged between both sides of the beaker, but there will be no net change in the amount of water on either side.
C. Water will be exchanged from the left side of the beaker to the right by facilitated diffusion.
D. Water will leave the right side of the beaker by osmosis and join the left side of the beaker.
If the left side of the beaker has a greater concentration of urea than the right side, then A, water will leave the right side of the beaker by osmosis and join the left side of the beaker.
Why does osmosis occur in this instance?Osmosis occurs in this instance because there is a difference in the concentration of urea between the left and right sides of the beaker. Urea is a solute that cannot pass through the selectively permeable membrane, but water molecules can.
This is because water moves from an area of low solute concentration to an area of high solute concentration in order to equalize the solute concentration on both sides of the membrane.
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the rapid rise and fall in force produced by a muscle fiber after a single action potential is a(n)
Answer:
The rapid rise and fall in force produced by a muscle fiber after a single action potential is called a muscle twitch. A muscle twitch is a type of muscular contraction that is produced in response to a single action potential, and it is characterized by a rapid and brief increase in muscle force followed by a rapid relaxation. This type of contraction is important for a variety of physiological processes, including reflexes, movements of the eyes and limbs, and maintenance of posture.
Is Shibuya City a marine or continental environment?
Answer:
Well, Shibuya City is located in the Tokyo Metropolis of Japan and since it is an urbanized area, it is an continental environment.
2. Which determines the identity of an element
A. its mass number
B. the charge of the atom
C. the number of its neutrons
D. the number of its protons
The identity of an element is primarily determined by: D. The number of its protons.
The identity of an elementThe number of protons in an atom's nucleus is known as its atomic number. Each element on the periodic table has a unique atomic number, which corresponds to the number of protons in the nucleus of its atoms. For example, hydrogen has an atomic number of 1 because it has one proton, while carbon has an atomic number of 6 because it has six protons.
The atomic number is crucial in defining the identity of an element because it distinguishes one element from another.
Hence option d is correct
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You and a friend want to start a soda company. For ingredients, you have sucrose, carbon dioxide gas, concentrated juices from different fruits, and water. Describe how you will experiment with these ingredients to develop a recipe for your soda. Consider the rolls of temperature and pressure, and how to minimize the cost of energy in the production of your soda.
The experiments to be performed and the best way to minimize cost of production in soda production is :
dissolve the carbon dioxide in water at low temperature and high pressuremix the sucrose and the concentrated juice into the carbonated waterWhat is the best way to minimize the cost of production in soda production?The best way to minimize the cost of production in soda production is to ensure that the energy costs are minimized and the raw material for production are effectively utilized.
The energy costs in soda production will be from the maintenance of temperature and pressure during the production of soda.
Therefore, dissolving of carbon dioxide in water under low temperature and high pressure and mixing of the sugar and concentrated juices into the carbonated water will be best for soda production.
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the golgi apparatus are membranous sacs that modify proteins and carbohydrates that are then sent to other areas of the cell in ________________________.
The Golgi apparatus are membranous sacs that modify proteins and carbohydrates that are then sent to other areas of the cell in vesicles.
Role of ribosomes:
Ribosomes play a crucial role in the synthesis of proteins, which are then transported to the Golgi apparatus for modification and distribution to other parts of the cell. The function of the Golgi apparatus is to sort, modify, and package molecules such as proteins and lipids for secretion or for use within the cell.
The Golgi apparatus are membranous sacs that modify proteins and carbohydrates that are then sent to other areas of the cell in vesicles. The function of the Golgi apparatus is to process, sort, and package these modified proteins and carbohydrates, which are synthesized by ribosomes, into vesicles for transport to their designated destinations within or outside the cell.
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Please help, it is python
You are holding an egg-balancing race in which each contestant will need one egg. You want to know if you have bought enough dozens of eggs for all the contestants who have registered for the race. Wr
Sure, I can help you with your question! To determine if you have bought enough dozens of eggs for all the contestants who have registered for the race in Python, you can use the following code:```pythoneggs_needed = dozens_needed = eggs_needed // 12if eggs_needed % 12 != 0:
dozens_needed += 1print("You need to buy at least", dozens_needed, "dozen eggs.")```
Here's how the code works:
1. The `input()` function is used to ask the user how many eggs are needed for the race. The value entered is converted to an integer using the `int()` function and stored in the `eggs_needed` variable.
2. The number of dozens of eggs needed is calculated by dividing the number of eggs needed by 12 using the `//` operator, which performs integer division (i.e., it returns the quotient without the remainder). The result is stored in the `dozens_needed` variable.
3. If the number of eggs needed is not a multiple of 12 (i.e., there is a remainder), then one extra dozen of eggs is needed to make up for the remaining eggs. This is accounted for by adding 1 to the `dozens_needed` variable.4. Finally, the result is printed out using the `print()` function, which displays a message telling the user how many dozens of eggs they need to buy.
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For each food listed below choose whether it has it all single carbon to carbon bonds or at least one double carbon to carbon bond
Answer:
Peanut butter
All single carbon-to-carbon bonds
Sunflower oil
At least one double carbon-to-carbon bond
Cheddar cheese
All single carbon-to-carbon bonds
Explanation: I did it on Edge 2020 and it was correct.
7.Diane has type A blood and Darryl has type B. They have a son Duane with type A blood and a daughter, Dora, with type B blood. If they have another child, what are the chances that it
Answer:
A - 1/4
B - 1/2
C- 1/8
Explanation:
The complete question is
Diane has type A blood and Darryl has type B. They have a son Duane with type A blood and a daughter, Dora, with type B blood. If they have another child, what are the chances that it
A. Will have type AB blood?
B. Will be a girl?
C. Will be a boy with type O blood?
A.
Let the genotype of Diane be AO
Daryl can have genotype BO
AO * BO
AB, AO, BO, OO
Probability of having AB blood group is 1/4
B.
1/2
C
1/2 * 1/4 = 1/8
1. Which is true about the sun?
a. the sun is the largest star in the Milky Way Galaxy
b. The sun is the closest star to earth in all galaxies
c. the sun has the highest surface temperature of all stars in the Milky Way Galaxy
d. the sun has the highest absolute brightness of all stars in the Milky Way Galaxy
2. Why does a star, such as Betelgeuse, have a much greater absolute magnitude than apparent magnitude?
a. Absolute magnitude is relative to the sun
b. apparent magnitude does not take into account the distance from earth
c. absolute magnitude does not take into account the distance from earth
d. Betelgeuse is closer to earth
3. Which has the hottest temperature?
a. a blue star
b. a reed giant star
c. the left over energy from the big bang
d. a swirling accretion disk of matter orbiting a black hole
4. An astronomer uses a telescope to observe a star. She observes that the color of this star is similar to the color of the sun. Therefore, she infers that the star and the sun have similar sizes and surface temperatures. Using this information, what can the astronomer conclude about the star?
a. The star is a white dwarf
b. the star is cooler than a blue star
c. the star is brighter than a red giant star
d. the star is more distant than most other stars in our galaxy
5. The sun does not rotate in the same way the earth does. The sun has different periods of rotation at different latitudes. The figure below shows the rotation of the sun.
Which letter indicates the latitude at which the sun rotates the fastest?
a. R
b. S
c. T
d. W
The sun is the largest star in the milky way galaxy. Therefore, option A of 1 is correct, option B of 2 is correct, option A of 3 is correct, option A of 4 is correct, and option B of 5 is correct.
What is a galaxy?A galaxy is a massive cluster of gas, dust, billions of stars, and solar systems that are all bound together by gravity.
The sun is the largest star in the milky way galaxy. A star, such as Betelgeuse, has a much greater absolute magnitude than apparent magnitude because absolute magnitude does not take into account the distance from earth. A blue star has the hottest temperature.
An astronomer uses a telescope to observe a star. She observes that the color of this star is similar to the color of the sun. Therefore, she infers that the star and the sun have similar sizes and surface temperatures. Using this information, she concludes that the star is a white dwarf. Letter S indicates the latitude at which the sun rotates the fastest.
Therefore, option A of 1 is correct, option B of 2 is correct, option A of 3 is correct, option A of 4 is correct, and option B of 5 is correct.
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What pattern of inheritance results from the effects of multiple genes at different chromosome locations to produce one overall phenotype?
Multiple genes controlling a single overall phenotype is known as polygene inheritance.
Polygene inheritance:
A trait that is inherited by polygenic inheritance is one that is controlled by multiple genes. The inheritance of polygenic traits is typically controlled by three or more genes. A single quantitative trait is influenced additively or similarly by multiple separate genes. Human phenotypes including height, weight, eye color, and hair color are all polygenic features; more genes are continually being discovered that contribute to these traits.
An estimate of population parameters can be provided by statistically analyzing polygenic inheritance patterns. The majority of polygenic inheritance follows the normal distribution curve, with most individuals falling in the middle of the curve's range.
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1. Lactose takes years to break down on its own. But if exposed to the protein lactase, the reaction proceeds very quickly, while lactase itself remains unchanged. Lactase is an example of a(n) . 2. A(n) is a molecule that can bind to an enzyme and prevent the enzyme from working. There are two types: a(n) binds to the active site of the enzyme; a(n) binds elsewhere on the enzyme. 3. Enzymes speed up chemical reactions by lowering the , which allows the reaction to proceed much more quickly. 4. During an enzymatic reaction, a molecule of binds to the enzyme and is broken down into one or more molecules of , which are released. 5. The specific location within an enzyme molecule where the substrate binds is called the .
Answer:
1.) Lactase is an example of ENZYME.
2.)An INHIBITOR is a molecule that can bind to an enzyme and prevent the enzyme from working.
3.)Enzymes speed up chemical reactions by lowering the ACTIVATION ENERGY,
4.) a molecule of SUBSTRATE binds to the enzyme and is broken down into one or more molecules of PRODUCT which are released.
5.) The specific location within an enzyme molecule where the substrate binds is called the ACTIVE SITE.
Explanation:
An enzyme is defined as the substances that aids in the breaking down of complex food substances, taken in by animals, into simple, soluble and diffusible substances before they can be absorbed into the body. In the enzymatic reactions, a molecule of SUBSTRATE binds to the ACTIVE SITE of an enzyme and is broken down into one or more molecules of PRODUCT which are released.
There are different types of enzymes which are named according to the type of good they digest, these include:
--> Lactase: breaks down Lactose
--> proteases: breaks down proteins
--> Amylases: breaks down carbohydrate
Enzymes have the following characteristics:
--> They are proteins
--> They are specific in action. For example Lactase can only act on lactose.
--> They can be inactivated by INHIBITORS.
--> They are sensitive to temperature
--> They speed up a reaction by lowering the ACTIVATION ENERGY
When baking an empty pie crust
o poke holes in it
o weigh it down
o both choices
Answer:
I think the answer is C
Explanation:
You get 20 points
Plss help me it’s urgent
Answer: Somatic stem cells are capable of self-renewal, not differentiation
Embryonic stem cells are capable of self-renewal and differentiation
Amniotic fluid stem cells are capable of self-renewal and limited differentiation
Explanation:
Can someone please help me answer these questions?
1. Name and describe each of the 3 major processes in the water cycle.
2. Describe the properties of ocean water.
3. Describe the 2 types of ocean currents.
4. Name the 2 types of freshwater and describe how they can be stored.
Answer:
evaporation, condensation, and precipitation. Evaporation is the process of a liquid's surface changing to a gas. In the water cycle, liquid water (in the ocean, lakes, or rivers) evaporates and becomes water vapor. condensation water which collects as droplets on a cold surface when humid air is in contact with it. Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Most precipitation falls as rain. properties of ocean water.Ocean waters are salty and contain minerals and dissolved gases. They also have a high heat capacity and vary in density depending on temperature and salinity. The two basic types of currents – surface and deep-water currents – help define the character and flow of ocean waters across the planet.On the landscape, freshwater is stored in rivers, lakes, reservoirs, and creeks and streams. Most of the water people use everyday comes from these sources of water on the land surface. Lakes are valuable natural resources, both for human and non-human life.
what is newton's firt law
Newton's First Law, the Law of Inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
What is motion?Motion is the physical movement of an object that changes its position over time. It can be linear or circular, and can occur in a straight line or an arc. Motion is a fundamental part of the physical world and is studied in many branches of science, including physics, astronomy, and mathematics. In physics, motion is studied in terms of displacement, velocity, acceleration, time, and energy. Motion can be represented graphically with the use of graphs and diagrams. Motion can also be expressed in terms of equations and mathematical formulas. Motion is an important factor in the understanding of the laws of physics, and in the application of engineering principles. Motion is also used to describe the motions of objects in the universe, such as planets, stars, and galaxies. Motion is also used in everyday life and is used in sports, transportation, and entertainment.
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Which type of mutation is seen in a sperm cell but not in a skin cell?
Answer:
An alteration in DNA that occurs after conception. Somatic mutations can occur in any of the cells of the body except the germ cells (sperm and egg) and therefore are not passed on to children. These alterations can (but do not always) cause cancer or other diseases.
Explanation:
when a skin stem cell harbors a cancer-driving mutation, it becomes more likely to generate two specialized skin cells when it divides. Over time, the mutated skin stem cell fails to renew itself and turns into cells that eventually slough off, allowing the skin to expel mutated cells as needed.
Errors in DNA copying during cell division and development can cause new mutations — called de novo mutations — at any time from the moment of conception. Mutations that occur in the germ line — the cells that develop into sperm or eggs — can be passed on to the next generation and, perhaps, cause disease in children.
I can list and describe how environmental factors can cause cell damage/mutations
Answer:
if u can list it then list it :/
Explanation:
Environmental factors help cells and organisms mutate to get better results and less deaths in an ecosystem
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brainliest please?
what is fart? explain and what do you call it?
Answer:
Farts — also called flatus (say: FLAY-tuss) or intestinal (say: in-TESS-tuh-null) gas — are made of, well, gas! When you eat, you don't swallow just your food. All of these gases in the digestive system have to escape somehow, so they come out as farts! Gases are also what can make farts smell bad.