The continuity of life depends on a cell cycle during which genetic information is passed from a parent cell to daughter cells. Because cell division plays several important roles in life, it is important that the cycle be regulated. Which of the following are reasons the cell cycle must be regulated? Select all that apply. a) To make sure daughter cells are genetically different from the parent cell b) To make sure daughter cells end up with the right number of chromosomes c) To make sure cells only divide when conditions are favorable for growth and development of the organism d) To allow cells to respond to cues from their internal state and from their environment
Answers
The cell cycle must be regulated (b) to make sure daughter cells end up with the right number of chromosomes, (c) to make sure cells only divide when conditions are favorable for growth and development of the organism, and (d) to allow cells to respond to cues from their internal state and from their environment.
The cell cycle is a series of events that occur in a cell as it grows and divides into two daughter cells. It is a process that is essential for the growth and development of all living organisms. The cell cycle is divided into two main stages: interphase and mitosis.
Interphase is the period when a cell is not dividing. During interphase, a cell carries out its normal metabolic activities and prepares for cell division. It is also the stage where the cell replicates its DNA in preparation for mitosis.Mitosis is the process of cell division that results in the formation of two identical daughter cells. It is a complex process that involves the separation of the cell's DNA into two sets, and the subsequent formation of two nuclei with identical chromosomes.The cell cycle is regulated to ensure that the daughter cells produced by cell division are genetically identical to the parent cell. This is important for the continuity of life, as genetic information must be passed down accurately from one generation to the next.The cell cycle is also regulated to ensure that daughter cells end up with the correct number of chromosomes. Errors in chromosome number can lead to serious genetic disorders, such as Down syndrome.
The cell cycle is further regulated to ensure that cells only divide when conditions are favorable for growth and development of the organism. This prevents cells from dividing in unfavorable conditions, which could lead to genetic damage and cell death.Finally, the cell cycle is regulated to allow cells to respond to cues from their internal state and from their environment. This enables cells to adjust their rate of division according to changing conditions, such as changes in nutrient availability or exposure to environmental toxins.
Thus, option b,c and d are correct.
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Related Questions
on the basis of energy requirement, which does not belong to the group?
Answers
Fossil fuels are non-renewable energy sources and produce energy through combustion, whereas solar, wind and nuclear power are renewable energy sources.
What is Fossil fuels?Fossil fuels are energy sources that are formed by the decomposition of organic matter over millions of years. These non-renewable sources of energy include coal, crude oil and natural gas. Fossil fuels are burned to generate electricity and to power engines in vehicles and other machinery. Fossil fuels are rich in carbon and when they are burned they release carbon dioxide and other pollutants into the atmosphere. Fossil fuels are a finite resource, so as they are consumed, they become increasingly difficult and expensive to obtain. This has led to a strong focus on the development of renewable energy sources, such as solar and wind power, to help reduce our dependence on fossil fuels.
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Complete Question
On the basis of energy requirement, which does not belong to the group?
A. Solar Power
B. Wind Power
C. Nuclear Power
D. Fossil Fuels
Which venn diagram accurately describes what characteristics of solids, liquids, and gasses could be added to this diagram
Answers
Answer:
See explanation for image
Explanation:
The Venn diagram that can accurately show the characteristics of solids, liquids, and gases, can show which characteristics are unique to each of these states of matter and which characteristics are shared among the three.
You did not present the answer options, but it was possible to find them in questions like yours. These answer options are in the figure attached below and among them, the letter B is the correct answer.
Regarding the Venn diagram, we can say that:
The diagram consists of three circles, which overlap, sharing a small space, in the center of the three.Each circle represents a different element.The part of the circle that is away from the shared center refers to the particular characteristics of each element.The part of the circle that is within the shared center refers to the characteristics shared between these elements.In diagram B shown in the figure below, it meets all the requirements shown above.
In this diagram, the shared center presents the common characteristics of solids, liquids, and gases. However, the top circle shows the particular characteristics of solids. The circle on the left shows the particular characteristics of gases, while the circle on the right shows the particular characteristics of liquids.
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What is the eagle habitat.
Answers
Answer:
the habitat of an eagle is large lakes, reservoirs, and some seacoast
Which of the following does NOT act upon winds that blow far above the surface of the Earth? a) Coriolis b) geostrophic c) gravity d) pressure gradient e) friction
Answers
The correct answer to the question is e) friction. Friction is a force that acts upon the winds that blow near the Earth's surface.
It is caused by the interaction between the wind and the Earth's surface. Friction slows down the winds and changes their direction, making them move in a spiral pattern. The other options, Coriolis, geostrophic, gravity, and pressure gradient, all act upon winds that blow far above the surface of the Earth. Coriolis force is caused by the rotation of the Earth and causes the winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
Geostrophic force is the balance between the Coriolis force and the pressure gradient force. Gravity plays a role in the movement of air masses, and pressure gradient force is the difference in air pressure between two locations that causes air to move from high to low pressure.
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Many populations in a specific area or region at a certain time make up a O Community O Niche O Ecosystem O Population
Answers
Answer:
O Community
Explanation:
A community is made up of many populations within a specific area a certain period of time.
A population is group of organisms of the same species that can interbreed and produce viable offspring Populations of organisms in a specific area or region is known as a community. An example is a community made up birds population, human beings, lizards etc.How has the biosphere changed overtime?
Answers
Answer:
Over a long period of time, the atmosphere developed a mix of oxygen and other gases that could sustain new forms of life. The addition of oxygen to the biosphere allowed more complex life-forms to evolve. This exchange of food and energy makes the biosphere a self-supporting and self-regulating system.
Explanation:
The presence of which magnetic feature best explains why a magnet can act at a distance on other magnets or on objects containing certain metals?
O fields
O dipoles
O domains
O forces
Answers
Answer:
Option: A) fields
Explanation:
Answer: A) Fields
Explanation:
I just took the test.
what is cementation?
Answers
Answer:
The binding together of particles or other things by cement.Explanation:
Hope this helps! <3
Explain why, if you want to be an attorney, you might pursue a bachelor's degree in science, engineering, or math, rather than in political science or economics.
Answers
Answer:
If I want to be an attorney, pursuing a bachelor's degree in science, engineering, or math can offer several advantages over a degree in political science or economics.
Firstly, a degree in science, engineering, or math provides a strong foundation in critical thinking, problem-solving, and analytical skills, which are essential for a career as an attorney. These skills are highly valued in the legal profession, as attorneys must be able to analyze complex legal issues, identify relevant facts, and develop effective arguments.
Secondly, a degree in science, engineering, or math can set you apart from other law school applicants and make you a more competitive candidate. Law schools often look for applicants with diverse educational backgrounds and experiences, and a degree in a STEM field can demonstrate your ability to excel in a rigorous academic program.
Thirdly, pursuing a degree in science, engineering, or math can open up opportunities for a career in a related field, such as patent law, environmental law, or intellectual property law. These fields require a strong technical background and knowledge of scientific concepts, which can be gained through a STEM degree.
While a degree in political science or economics can also be beneficial for a career in law, a degree in science, engineering, or math offers unique advantages that can help you stand out in a competitive field and prepare you for a successful career as an attorney.
1.When comparing individuals of a population, a scientists finds a trait (A) that is shared by most members of a population and another trait (B) that is present in only a few individuals. How could this BEST be explained using descent with modification by natural selection?
A.
Trait A evolved earlier in time and was not favored by selection.
B.
Trait A evolved earlier in time and was favored by selection.
C.
Trait A evolved in more locations and was not favored by selection.
D.
Trait A evolved in more locations and was favored by selection.
2.Populations are evolving if
A.
the Hardy-Weinberg equation equals 1.
B.
the Hardy-Weinberg equation equals 0.
C.
p + q changes between generations.
D.
p + q remains the same between generations.
3.S3x ual reproduction provides an advantage to organisms because it increases the
A.
size of the genome of a species.
B.
genetic variability in a population.
C.
fitness of individual alleles of a gene.
D.
number of mutations during cell division.
4.Two parents, who are thought to be different species, mate and produce viable hybrid offspring. When two of these hybrids mate, their offspring are not viable. What is the BEST interpretation of this data?
A.
The original parents are the same species because they can breed together.
B.
The original parents are the same species because they can breed together and produce viable offspring.
C.
The original parents are not the same species because they produce hybrids that impair the species’ development or survival in its environment.
D.
The original parents are not the same species because they produce hybrids that can have reduced viability and fertility when they mate.
5.Adaptive radiation is when
A.
a species develops a new trait.
B.
several species move to a new location.
C.
the number of species in an area rapidly increases in number.
D.
the number of species in an area rapidly decreases in number.
6.Where on a phylogeny are ancestral organisms for two groups found?
A.
at the end of the rightmost branch
B.
at the end of the leftmost branch
C.
on the nodes between the two groups
D.
as a perpendicular line crossing a branch
7.S3 xu al selection is BEST described as favoring traits that increase the
A.
viability of offspring.
B.
number of gametes produced.
C.
likelihood of attracting a mate.
D.
ability to protect a claimed territory.
Answers
Answer:
1. B
2. C
3. B
4. D
5. C
6. C
7. C
Explanation: Took the test
. a series of mitochondrial proteins that transfer electron energy to atp and require oxygen.
Answers
The series of mitochondrial proteins that transfer electron energy to ATP and require oxygen is known as the electron transport chain (ETC).
The ETC is a critical component of cellular respiration and occurs in the inner mitochondrial membrane. It consists of a series of protein complexes, including NADH dehydrogenase, succinate dehydrogenase, cytochrome b-c1 complex, cytochrome c, and cytochrome oxidase. These complexes work together to transfer electrons derived from NADH and FADH2, which are produced during earlier stages of cellular respiration, and transfer them along the chain.
As electrons are passed through the protein complexes, energy is released and used to pump protons across the mitochondrial membrane, creating an electrochemical gradient. This gradient is then used by ATP synthase to produce ATP through a process known as oxidative phosphorylation.
The final acceptor of the electron transport chain is oxygen, which combines with hydrogen ions to form water. Thus, the ETC connects the process of electron transfer to the production of ATP, relying on oxygen as the final electron acceptor.
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The complete question is:
A series of mitochondrial proteins that transfer electron energy to ATP and require oxygen is called ______.
why does energy need to be stored?
Answers
Answer:
all living organisms need energy to grow and reproduce and respond to their environments metabolism is the set of life-sustaining chemical processes that enables organisms transform the chemical energy stored in molecules into energy that can be used later for cellular processes
Explanation:
it is stored for later use and cellular processes
There are approximately 200 different types of cells in the human body, although all cells are dependent on other cells to
perform body functions. Explain how your model supports this statement?
Answers
Answer:
Without being able to see your model, it is difficult for me to answer your question, though I have done what I can to help you understand better.
Explanation:
In the human body, different types of cells have specialized functions that allow them to perform specific tasks. For example, nerve cells are specialized for transmitting electrical signals, while muscle cells are specialized for contracting to produce movement. Despite their specialized functions, however, all cells in the human body depend on other cells to perform their functions properly. This is because the body's various systems, such as the circulatory, nervous, and digestive systems, are made up of many different types of cells that work together to maintain the body's overall health and function. For example, nerve cells need support from other cells such as glial cells in order to properly transmit signals, and muscle cells need nutrients and oxygen supplied by the blood in order to contract and move. In this way, the different types of cells in the human body are dependent on each other to perform their functions and maintain the body's overall health.
How many possible connections are there among the neurons of the brain?
(A) about 500 million
(B) about 500 trillion
(C) about 5 billion
(D) about 50 trillion.
Answers
The number of possible connections among the neurons of the brain is about 500 trillion (B).
Neurons are specialized cells that process and transmit information in the brain. Each neuron is connected to other neurons through synapses, which are the sites of communication between neurons. The number of possible connections between neurons in the brain is incredibly large.
According to estimates, the human brain has about 100 billion neurons, and each neuron can form connections with up to 10,000 other neurons. This means that the total number of possible connections in the brain is about 1 quadrillion (10^15).
However, not all possible connections are formed in the brain, and the actual number of connections is estimated to be around 150 trillion (10^14). Therefore, the correct answer to the question is an option (B) about 500 trillion.
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What are the effects of an asteroid collision and how can we prevent one in the future ?
Answers
how the geographical location affects the natural resources that the philippines have?
Answers
Philippines has great diversity in natural resources. The country has diverse arable lands, rich in flora and fauna, extensive coastlines and rich mineral deposits.
How the location is affecting natural resources?30% of the land area is determined be geographically prospective by Philippine Mines and Geo-Sciences Bureau. 1.5% of the land area is covered by mining . The country has many different natural water forms, such as bays, rivers, lakes falls, gulfs, straits and swamps. Philippines has excellent natural harbours for ports like Manila Bay. Fertile land is the country's main source of livelihood. Rich, wide plains that are suitable for farming are found in the Cagayan Valley, Central Luzon, South western Bicol, Panay, Negros, Davao, Cotabato, Agusan and Bukidnon. Major crops that are grown are rice, corn, sugarcane, coconut, abaca and tobacco.
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Which is most important for healthy development in childhood: nature or nurture?
Answers
Answer:
nurture.
Explanation:
Nature happens according to the level of nurture given.
There is a blood bank which maintains two tables: donor, the people who are willing to donate blood and acceptor, the people who are in need of blood. The blood bank wants to place an order for some pints of blood with some other bank. To place such an order the bank needs to query their database and get the blood groups whose total amount that donors can give is less than the total amount of blood the acceptors need. List the blood groups and their unfulfilled quantities (needed - available), sorted by blood group, ascending.
Answers
The blood groups and their unfulfilled quantities (needed - available), sorted by blood group, ascending are :A+ 15B- 3O+ 5.
Blood group Quantity Needed Quantity Available Unfulfilled Quantity A+20 405+5 A-15 2015 B+20 2525B-15 1215O+25 20200-20 3020 Let's say blood bank B wants to place an order for some pints of blood with some other bank. To place such an order, blood bank B needs to query its database and get the blood groups whose total amount that donors can give is less than the total amount of blood the acceptors need.
As we can see from the above table, the blood groups and their unfulfilled quantities are:
For blood group A+: Unfulfilled Quantity = 20 - 5 = 15For blood group A-: Unfulfilled Quantity = 15 - 15 = 0For blood group B+: Unfulfilled Quantity = 20 - 25 = -5For blood group B-: Unfulfilled Quantity = 15 - 12 = 3For blood group O+: Unfulfilled Quantity = 25 - 20 = 5For blood group O-: Unfulfilled Quantity = 20 - 30 = -10As we can see, the blood groups whose total amount that donors can give is less than the total amount of blood the acceptors need are: A+, B-, and O+.
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2. How can a gas at room temperature (like oxygen) become solid?
Answers
Answer: The physical state of the material depends on the intermolecular interaction between hydrogen molecules....and here this is only a fairly weak dispersion force, which is reasonable because the molecule is certainly non-polar, and is not many electron. ... Dihydrogen, dinitrogen, and dioxygen are ALL room temperature gases
Explanation: Several of the nonmetals are gases in their elemental form. Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules (H2, N2, O2, F2, Cl2).
4 of the genes involved in the pathway that creates melanin proteins are TYR, TYRP-1, OCA2, and SLC45A2. Using the diagram above, predict what you think will happen directly or indirectly to other parts of the pathway if each is mutated in some way:
TYR:
TYRP-1:
OCA2:
SLC45A2:
Answers
4 of the genes involved in the pathway that creates melanin proteins are TYR, TYRP-1, OCA2 and SLC45A2, if mutations occur, they can produce yellow, red, black and brown pigments.
Mutated in some wayTYR:Red/yellow pigmentTYRP-1: Brown/ black pigment OCA2: Brown/ black pigmenSLC45A2: Brown/ black pigmenMelanin proteinsMelanin is a protein produced from tyrosine (an essential amino acid) by specialized cells called melanocytes. This pigment is normally brown, and its main function is to protect DNA against the harmful action of radiation emitted by the sun.
Melanocytes have a globule-shaped cytoplasm from which extensions emerge that run towards the surface of the epidermis. On their way, the extensions enter cells called keratinocytes and introduce the pigment inside them. The melanocyte and keratinocyte association is called the epidermal-melanic unit and is normally formed by only one melanocyte and more than thirty keratinocytes.
With this information, we can say that some mutations in melanin proteins can cause pigmentation that is different from normal.
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Where is radial symmetry found?
Answers
Cnidarians, such as jellyfish, sea anemones, and coral, as well as echinoderms, have radial symmetry (such as sea urchins, brittle stars, and sea stars).
Describe a radial symmetry example.For instance, pies, snowflakes, and starfish all feature numerous lines of symmetry that divide them into symmetrical halves and cross one another in the center, making them radially symmetric objects.
What plant exhibits radial symmetry?Petunias, buttercups, and wild roses are examples of actinomorphic, or radially symmetrical, flowers, which are considered regular when the various members of each whorl are similar. The whorl of a flower is uneven when its component sections are different sizes or shapes (as in the canna and Asiatic dayflower).
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The cold adapted coniferous trees that dominate here have the following key adaptations: (select all that apply) question 7 options: conical shape to helps the snow to distribute more evenly across the tree and also to fall to the ground and prevent branches from breaking pear shape to helps the snow to distribute more evenly across the tree and also to fall to the ground and prevent branches from breaking thin needles have less surface area and waxy cuticles to avoid water loss in the dry winds and in winter when most available water is frozen thick needles have less surface area and waxy cuticles to avoid water loss in the dry winds and in winter when most available water is frozen very shallow roots compared to other trees like we have here in ohio. very deep roots compared to other trees like we have here in ohio.
Answers
Conical shape helps the snow to distribute more evenly across the tree and also to fall the ground and prevent branches from breaking pear shape to helps the snow to distribute more evenly across the tree
and ,also to fall to the ground and prevent branches from breaking thin needles have less surface area.
How do conifers adapt to the cold?They have several adaptations that help them grow in colder, drier conditions. Their needles are heavily cutinized. Their small surface area helps reduce evaporative water loss.
Thus, thee are the correct statement.
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How are chromosomes of the offspring related to the chromosomes of the parents
Answers
What continents does a aquatic biome have?
Answers
There are five aquatic biome which are Freshwater Biome, Freshwater wetlands Biome, Marine Biome, Coral reef Biome.
What continents does an aquatic biome have?
The aquatic biome is divided into two regions, first is freshwater and the second is marine regions. Fresh water consist of lakes and rivers which is less salt concentrated while the marine region consist of estuaries and oceans that are more salt concentrated. Marine or aquatic biome is found in 5 main oceans, the Pacific, the Atlantic, the Indian, the Arctic and the Southern ocean.
So we can conclude that: There are five aquatic biome which are Freshwater Biome, Freshwater wetlands Biome, Marine Biome, Coral reef Biome.
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Cell having two copies of each type of chromosome is called
Answers
Answer: Diploid means you have two of each type of chromosome.
Explanation:
Diploid is the term that refers to the number of each type of chromosome that an organism has. And diploid specifically means every cell in that organism has two copies of each type of chromosome.
It is not the number of different nucleotides, but the ________________ that is important in the ability of DNA to code for all the variability of organisms.
I'll mark brainlest
Answers
Answer:
discupa eu não sei
uma bela noite abençoe
Which of the following is the best description of how anteaters evolved long tongues? a. Anteaters grew long tongues because they needed to reach inside ant hills. b. Anteaters grew long tongues because they constantly stretched their tongues. c. Random mutations occurred because anteaters needed to change. d. Each year, anteaters with the longest tongues were most likely to live. e. Changes like this depend on many factors, so it is impossible to answer.
Answers
The best description of how anteaters evolved long tongues is option d: Each year, anteaters with the longest tongues were most likely to live.
Natural selection favors advantageous traits, such as a longer tongue in the case of anteaters, that increase an individual's chances of survival and reproduction. Over time, these advantageous traits become more common in the population.
Option a is partially correct, as anteaters do use their long tongues to reach inside ant hills, but it does not explain how they evolved to have long tongues in the first place. Option b is incorrect, as stretching alone cannot cause the evolution of a new trait. Option c is incorrect, as random mutations do not occur because an organism "needs" to change. Option e is also incorrect, as there are factors that contribute to the evolution of traits, such as natural selection and genetic drift. Hence, the correct answer is Option D.
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1. Download the dichotomous key and the pictures of salamanders.
2. Use the dichotomous key provided to identify the 11 salamanders shown.
Answers
Answer:
can't see pdf won't let me open it
the black back salamander
Explanation:
Use the drop-down menus to indicate which endocrine structure is being described in each case. is the connection between the nervous system and the endocrine system. is called the master gland because it affects the release of the hormones of the other glands in the endocrine system. a malfunction in this gland that releases growth hormone can lead to gigantism.
Answers
The following are the statements that describe the endocrine structure in each case.
What do you mean by Endocrine Glands?The Endocrine gland may be defined as an organ that makes hormones that are released directly into the blood and travel to tissues and organs all over the body.
Hypothalamus is the connection between the nervous system and the endocrine system. The pituitary gland is called the master gland because it affects the release of the hormones of the other glands in the endocrine system. The pituitary gland: a malfunction in this gland that releases growth hormone can lead to gigantism. This disorder is known as Acromegaly.Therefore, the above are the statements that describe the endocrine structure in each case.
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Answer:
hypothalamus
pituitary
pituitary
Explanation:
edge 2022
what is the basic difference between relative and absolute dating? a. the comparison of species b. the use of bones and teeth c. the use of an actual number of years d. the use of wood
Answers
The basic difference between relative and absolute dating is the use of an actual number of years.
In relative dating using the relationships between objects, we can tell which ones are older or younger. For instance, we are aware from geology that soil layers close to the ground's surface are often newer than those layers further down. By monitoring the radioactive decay of isotopes or the effects of radiation on the crystal structure of minerals, absolute dating techniques estimate the amount of time since rocks first formed or when the soil is formed.
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