A cell only divides once during its lifetime.
Answers
Answer:
no. it will divide itself 50-70 times until it's right
Related Questions
during repair from a wound, clotting proteins, white blood cells and plasma enter the site from
Answers
During the repair from a wound, clotting proteins, white blood cells, and plasma enter the site from blood vessels.
When an injury occurs, platelets in the blood begin to clot and form a temporary barrier to prevent blood loss. The clotting process also attracts white blood cells to the site of injury. These cells help to fight off any bacteria or other foreign invaders that may have entered the wound. Plasma, which is the liquid component of blood, contains essential nutrients, hormones, and proteins that aid in the healing process. Blood vessels deliver all these components to the site of injury and provide oxygen and nutrients to the cells that are involved in the repair process. The coordinated efforts of these components help to promote healing and repair of the damaged tissue.
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How can BOD be measured? Propose two solutions.
Answers
Answer:
BOD measurement requires taking two samples at each site. One is tested immediately for dissolved oxygen, and the second is incubated in the dark at 20 C for 5 days and then tested for the amount of dissolved oxygen remaining.
Plz help me it’s multiple choice (:
Answers
Answer:
try b
Explanation:
Answer:
I believe it is C
Punnett Square.
Let me know if this helps!
How do bees make honey? (for my project)
Answers
Answer:
Bess make honey by collecting pollen or nectar then moisture by passing it mouth-to-mouth until the nectar turns into honey.
Explanation:
"Most bees gather only pollen or nectar. ... When her nectar “sacs” are full, the honeybee returns to the hive. Nectar is delivered to one of the indoor bees and is then passed mouth-to-mouth from bee to bee until its moisture content is reduced from about 70% to 20%. This changes the nectar into honey."
(Sorry if this doesn't make sense)
what body part is commonly called the ""voice box""?
Answers
Answer:
The larynx
Explanation:
The larynx, or voice box, is located in the neck and performs several important functions in the body. The larynx is involved in swallowing, breathing, and voice production. Sound is produced when the air which passes through the vocal cords causes them to vibrate and create sound waves in the pharynx, nose and mouth.
if you consume one molecule of pyruvate , how many ATP molecules you are going to produce ?
1 NADH -> 3 ATP
1 FADH2 -> 2 ATP
Answers
A single molecule of pyruvate will generate 15 ATP molecules.
Pyruvate is an important chemical constituent according to biochemical science. It is the molecule that is produced from glycolysis, a process by which energy is derived from glucose. The carboxylate group of pyruvate is removed as carbon dioxide. The synthesized acetyl group is stimulated through its association with Coenzyme-A, thus, producing Acetyl Coenzyme-A.
The TCA cycle generates 15 ATP molecules through oxidation of Acetyl Co-A. Through oxidative decarboxylation as well as Krebs cycle, a single molecule of pyruvate (containing 3 Carbon atoms) gives rise to 4 molecules of NADH, a single molecule of FADH2 as well as one molecule of ATP.
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What are the two types of learning? Define them. Then determine which type of the learning the following terms are related to.
- Classical conditioning
- mirror neurons
- operant conditioning
- reinforcement
- modeling
- punishment
- reinforcement schedules.
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The two types of learning are classical conditioning and operant conditioning.
Classical conditioning is a type of learning in which an organism learns to associate a stimulus with a response. Mirror neurons are related to classical conditioning, as they are neurons that fire when an organism performs an action or observes someone else performing the same action.
Operant conditioning is a type of learning in which an organism learns to associate a behaviour with a consequence. Reinforcement, punishment, reinforcement schedules, and modeling are all related to operant conditioning.
Which organelle is the red arrow pointing towards?
Answers
Answer: The Nucleus
Explanation: The nucleus is an almost centralized envelope of DNA responsible for a lot of tasks, and because of its location in that picture I would guess that it's the nucleus because of its position.
P S Q R The biological levels of organization range from a single organelle all the way up to the biosphere in a highly structured hierarchy. Multicellular organisms are organized from the simplest to most complex: cells, tissues, organs, organ systems, organisms. Evaluate the model above. Select ALL of the statements that accurately depict the examples shown in the model. A) R shows an animal cell. B) O shows types of tissue. P shows organs in the endocrine system. D) P shows an organ system, the digestive system. E) S shows an organ system, the digestive system.
Answers
Answer: the red thing pretend is blood and blue thing is water you first ta
Explanation:
Answer:
A) R → Q → P → S
Explanation:
I just took the test on USA Test Prep
how many species of finch are there in the galapagos?
Answers
Answer:
There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the islands only a few million years ago. How many of the species of finch eat insects? Fourteen finch species are found only on these islands.
Explanation:
Because the two heads of the ____________ share a common tendon of insertion with the ____________, these muscles are collectively called the triceps surae.
Answers
Because the two heads of the gastrocnemius share a common tendon of insertion with the soleus, these muscles are collectively called the triceps surae.
Triceps surae: The triceps surae muscle is the muscle of the calf that consists of the two-headed gastrocnemius and the soleus muscles. Together, these two muscles work together as a single unit to lift the heel and maintain the leg's stability while standing. The gastrocnemius muscle is the most visible and external component of the triceps surae muscle. It has two heads or points of origin, which are located above the knee on the femur's condyles. Its heads combine to form a common tendon that attaches to the calcaneus or heel bone. The gastrocnemius muscle and the soleus muscle combine to form the Achilles tendon, which inserts on the calcaneus bone's posterior surface. Consequently, because the two heads of the gastrocnemius share a common tendon of insertion with the soleus, these muscles are collectively called the triceps surae.
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Which part of the atom determines the name of the atom?
Answers
Answer:
The proton
Explanation:
The number of protons determines the name of the atom, Carbon will always have six protons but it has variants with different numbers of neutrons and electrons
just need a simple answer for this question pls
A population of rabbits living in the desert have two fur phenotypes, brown and
white. Analysis shows that over 3 generations, the brown fur rabbits have
increased to 80% of the population. Explain why this occurred?
Answers
The population of brown rabbits increase because the predators can't see them due to colour of the soil.
Why the population of brown rabbits increased?The population of brown fur rabbits have increased to 80% of the population as compared to white rabbits because brown rabbits can't be seen by the predators in the desert whereas the white rabbits are easily seen by the predators so the population of the brown rabbits increases.
So we can conclude that the population of brown rabbits increase because the predators can't see them due to colour of the soil.
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what is the medical term for the hardening and narrowing of arteries due to a buildup of cholesterol plaque on the interior walls of the arteries?
Answers
The accumulation of lipids, cholesterol, and other chemicals within and around artery walls is known as atherosclerosis. The accumulation is known as plaque. The arteries may narrow and get blocked by atherosclerosis.
What is atherosclerosis?Atherosclerosis refers to the buildup of plaque (fatty deposits) in your arteries. Calcium, fibrin, cellular waste products, fatty substances, and cholesterol make up these deposits (a clotting material in the blood). One example of arteriosclerosis is atherosclerosis. Arteriosclerosis is the medical term for artery hardening (sclerosis).
The walls of the blood artery thickens as plaque accumulates. As a result, the artery's channel narrows and blood flow is reduced. The body receives less nutrients and oxygen as a result.
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summarize how small, nonpolar molecules enter and leave the cell (and why).
Answers
Answer:
Small, nonpolar molecules (ex: oxygen and carbon dioxide) can pass through the lipid bilayer and do so by squeezing through the phospholipid bilayers. They don't need proteins for transport and can diffuse across quickly.
Explanation:
The channel proteins act like doors through the cell membrane.
They allow large polar molecules to move in and out of the cell.
The process is called passive diffusion or passive transport, because it does not need energy.
Sometimes the protein changes shape to help the polar molecules move through the channel.
It often uses a gated pore mechanism, in which the channel is never completely open.
Question 9 Which of the following is an opening in the interatrial septum of the fetal heart connecting the right and left atria? O ligamentum arteriosum foramen ovale fossa ovalis 2 pt ductus arteriosus
Answers
The opening in the interatrial septum of the fetal heart connecting the right and left atria is called the "foramen ovale." So the correct answer is foramen ovale.
Foramen ovale is an opening in the interatrial septum of the fetal heart that connects the right and left atria, which allows blood to bypass the lungs and flow to the left side of the heart. The foramen ovale normally closes shortly after birth, allowing the heart to assume its adult circulation pattern. There are two septa in the heart. The first is the interatrial septum, which divides the right and left atria. The second is the interventricular septum, which divides the right and left ventricles.
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(-17) - 21
rewrite (please give good explanation)
Answers
When subtracting a negative from a negative, we can use the inverse operation to solve:
17 + 21 = 38
The sum will always take the sign of the greater number. Subtracting a negative from a negative is the equivalent of adding the two integers and possessing the sign of the greater number. We call this ‘Inverse Operations,’ and this is widely used throughout mathematical and algebraic expressions/equations. If you need extra help, let me know and I will gladly assist you.
what is the part on an enzyme where a substrate molecule attaches
Answers
Answer: The Active Site
Explanation:
The part of the enzyme where the substrate binds is called the active site (since that's where the catalytic “action” happens). A substrate enters the active site of the enzyme. This forms the enzyme-substrate complex.
The process of converting the energy from food molecules into energy of ATP is Group of answer choices thermodynamics. catalysis. photosynthesis.
Answers
Answer:
The correct answer is actually cellular resperation
Explanation:
Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.
An (5.) _______________ speeds up a chemical reaction which converts a (6.)_______________ molecule or molecules to a (7.)_______________ molecule or molecules. Without an enzyme, many reactions occur at an extremely slow rate – too slow to sustain life. Figure 3 Enzymatic reactions M
Answers
An enzyme speeds up a chemical reaction which converts a reactant molecule or molecules to a product molecule or molecules.
An enzyme when added to a chemical reaction speeds up the rate of reaction. This converts the reactant molecules to product molecules.
What is an enzyme?An enzyme is a biocatalyst which when added to a chemical reaction speeds up the rate of the reaction. This is possible because enzymes decreases the amount of activation energy required by the reactant molecules to collide and form the products.
Reactants are the molecules which undergo chemical and physical change to convert into the products which show different properties than the reactant molecules.
Example of an enzyme catalyzed reaction is the breakdown of starch by the salivary amylase present in the mouth which converts the starch into amylose and amylopectins, which are the units of starch molecule.
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2 Shawna is very knowledgeable about cars. She subscribes to several different automobile magazines, has interviewe people who work on cars for a living, and has researched many types of cars. She started a blog with the information she has gathered. On her blog, she offers opinions about which cars are the best value for the money and which are the most difficult to repair. Which best describes the reliability of her work? O It is unreliable because it is on the Internet. O It is unreliable because it offers opinions, not scientific facts. O It is reliable because she gathered information from many sources. O It is reliable because it has information about all types of cars, not just her favorites.
Answers
Shawna has extensive knowledge about cars, which she has gathered from various sources, including automobile magazines, interviews with car mechanics, and research on different types of cars is "It is reliable because she gathered information from many sources," is the best description of the reliability of her work.
Shawna's knowledge about cars is extensive, and she has gathered information from multiple sources. She has conducted interviews with people who work on cars, subscribed to several different automobile magazines, and researched many types of cars.
All of this information was used to create her blog, which offers opinions about which cars are the best value for the money and which ones are difficult to repair. Her blog provides valuable insights into the car industry, which are supported by her extensive research and knowledge.
Because Shawna has collected information from various sources, her work is reliable, and her opinions are based on solid facts. Furthermore, she has demonstrated that she has taken the time to learn about all types of cars, which means that she can provide valuable insights about cars beyond her favorites.
In conclusion, her work is reliable because she has gathered information from many sources.
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The molecules in a solid vibrate in place.
Answers
The answer is thanks for the extra points
is table salt a compound? how can you tell?
Answers
Answer: Salt is an ionic compound, consisting of a crystal, lattice structure of the two ions Na+ and Cl-. Salt water is full of sodium chloride molecules.
Explanation:
hope this helps
Answer:
Chemically, table salt consists of two elements, sodium (Na) and chloride (Cl). Neither element occurs separately and free in nature, but are found bound together as the compound sodium chloride.
HOPE IT'S HELPS YOUAre Eukaryotic cells complex or simple?
Answers
Answer:
Complex because it has a lot of membrane bound organelles
I think so. They have their own energy factories (mitochondria) and their DNA is linear and found in the nucleus.
The organization of similar organisms into groups helps scientists understand how living things are related. It
also allows scientists to communicate about all forms of life. Scientists organize the living world using a process
called taxonomy, which is the science of classifying organisms based on shared structures, functions, and
relationships to other organisms. Scientists use a branching system of classification, and over the years, due to
new discoveries, the branching system has changed and grown.
Recently, scientists broadened the branching system of classification. Currently, the broadest group is the
A)
class
B)
domain
kingdom
D)
taxon
taxon
Answers
Answer:
Explanation:
THE ANSWER IS DOMAIN
.
Eliza places an 18-gram piece of an unknown substance into a graduated cylinder that is filled with 5 mL of water, and the water rises from the 5 mL line to the 8 mL line. What is the density of the unknown substance in g/mL?
Answers
The density of the unknown substance is 3.6 g/ml
As,
\(d=\frac{mass}{volume}\)
where,
Mass= 18 grams
Volume = 5 ml
d \(=\frac{18}{5} \frac{g}{ml}\)
d = 3.6 g/ml
What is Density?
Density is the mass of a material substance per unit volume.
The formula for density is
\(d=\frac{M}{V}\)
M is mass
V is volume
d is density
Grams per cubic centimeter are a typical unit of measurement for density.
We can calculate what materials will float and sink when placed in a liquid using the concept of density, which is a crucial idea. The rule of thumb is that objects will float as long as their density is lower than the liquid's density.
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You are studying nuclear lamins and use recombinant DNA technology to alter the coding sequence of a nuclear lamin gene. The alteration you make creates a situation such that the gene now codes for a nuclear lamin protein that can no longer be phosphorylated when the nuclear envelope is broken down during mitosis. What do you predict would happen if the cell only had the altered nuclear lamin gene (and not the unaltered version)
Answers
Answer:
Nuclear lamins will no longer disassemble during mitosis
Explanation:
The nuclear lamina is a fibrillar network inside the nucleus of eukaryotic cells, between the inner nuclear membrane and the peripheral chromatin. Nuclear lamins (also called simply lamin proteins) are intermediate filament-type proteins and represent the major building blocks of the nuclear lamina. During mitosis, the nuclear lamina is disassembled by hyperphosphorylation of nuclear lamins and lamina-associated proteins. The protein responsible for phosphorylating nuclear lamins is p34cdc2, a protein kinase that has a key role in controlling cell cycle progression. In consequence, a mutant form of the nuclear lamin proteins that cannot be phosphorylated will no longer be able to disassemble during mitosis.
The STARTING molecule for the Krebs cycle is
A.)NADH
B.)pyruvic acid
C.)glucose
Answers
Answer:
B
Explanation:
This combines with a 4 carbon compound to start the cycle
Kreb's cycle or Tricarboxylic cycle is an enzyme-catalyzed reaction, in which ATP molecules are generated. The starting material for the cycle is pyruvic acid.
The correct answer is:
Option B. Pyruvic acid
Some of the features of Kreb's cycle are:
The starting material of Kreb's cycle is pyruvic acid. The pyruvate is obtained from the glycolysis of glucose molecules.The pyruvic acid breaks into a two-carbon molecule and joined with the enzyme Co A, to form a two-carbon molecule Acetyl Coenzyme A.The Krebs cycle is a series of dehydration, reduction, oxidation, and hydration reactions.The product of Kreb's cycle is two carbon dioxide molecules, one GTP, and reduced NADH and FADH2.
Thus, the starting material for the Kreb's cycle is pyruvic acid, which is converted into the acetyl Coenzyme A before entering the Kreb's cycle.
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If the ray of the light strikes a mirror with an angle of incidence of 60, what will be the angle of reflection?
Answers
Answer:
60 from left or 120 from right
The bacteria Lactobacillus acidophilus are frequently used in the production of yogurt. These bacteria use lactic acid fermentation when oxygen is not available. What would happen to the bacteria under anaerobic conditions if the lactic acid fermentation pathway were blocked?
A.
The bacteria could no longer regenerate the NAD+ needed for glycolysis, so it would stop producing ATP.
B.
The bacteria could switch to using the Kreb's cycle, so it would continue producing ATP.
C.
The bacteria could no longer make the NADH needed for chemiosmosis, so it would stop producing ATP.
D.
The bacteria could switch to using alcohol fermentation, so it would continue producing ATP.
Answers
Answer:
A. The bacteria could no longer regenerate the NAD+ needed for glycolysis, so it would stop producing ATP.
Explanation:
According to the given information in this question, Lactobacillus acidophilus is a bacterium species that uses the lactic acid fermentation when there is no oxygen in its cell i.e. under anaerobic conditions. This means that it converts glucose to lactic acid during this anaerobic respiration process.
However, if the lactic acid fermentation pathway were blocked under an anaerobic condition, this means that it will be no longer be able to perform respiration and hence stop production of ATP. This is because the bacteria will no longer regenerate the NAD+ (electron acceptor) needed for glycolysis, so it would stop producing ATP. Note that, all living organisms, whether aerobic or anaerobic, undergo GLYCOLYSIS, which is the first stage of cellular respiration.
Answer:
EDMENTUM
Explanation:
