Answer:
cell; prophase. prometaphasemetaphase. anaphase, telophase.Explanation:
Mitosis is the division of the cell and begins with a stage called prophase. As the nuclear envelope finishes dissolving, the cells enter prometaphase, where microtubules from the spindle attach to the duplicated X-shaped chromosomes.
When all chromosomes are fully attached to the spindle, they align at the midplate between poles. This marks the middle of mitosis, which is metaphase. As sister chromatids separate, cells enter anaphase and they finish separating, and a nucleus reforms around each set of new chromosomes in telophase. During this phase, cytokinesis also becomes visible as the cells themselves begin to divide.
Identify the true statements regarding liver glycogen phosphorylase a. Protein phosphatase 1 is abbreviated PP1. The binding of glucose to liver phosphorylase a shifts the equilibrium from the active form to the inactive form. Liver phosphorylase a concentration decreases when glucose enters the blood. As the concentration of phosphorylase a decreases, the activity of glycogen synthase increases. Liver phosphorylase a is regulated by AMP, adenosine monophosphate. When PP1 is bound to phosphorylase a, both PP1 and phosphorylase a are active.
Answer:
Liver phosphorylase a concentration decreases when glucose enters the blood.
The binding of glucose to liver phosphorylase a shifts the equilibrium from the active form
As the concentration of phosphorylase a decreases, the activity of glycogen synthase increases. to the inactive form
Explanation:
Protein phosphatase 1 (PP1) is a phosphatase enzyme known to remove phosphate groups from serine/threonine amino acid residues. PP1 plays diverse biological roles including, among others, cell progression, control of glucose metabolism, muscle contraction, etc. In glucose metabolism, PP1 regulates diverse glycogen metabolizing enzymes (e.g., glycogen synthase, glycogen phosphorylase, etc). In the liver, glycogen phosphorylase catalyzes the rate-limiting step in glycogenolysis by releasing glucose-1-phosphate. Glycogen phosphorylase a is converted (and inactivated) into the b form by PP1, which catalyzes the hydrolysis of the phosphate bond between serine and the phosphoryl group. In the liver, glucose binds in order to inhibit glycogen phosphorylase a, thereby inducing the dissociation and activation of PP1 from glycogen phosphorylase a.
# 14 please!!!! will give brainliest
Answer:
Within the bone marrow, all blood cells originate from a single type of unspecialized cell called a stem cell. When a stem cell divides, it first becomes an immature red blood cell, white blood cell, or platelet-producing cell.
Explanation:
I am not sure if this helps you....
In pea plants, purple flowers (P) are dominant over white flowers (P). If two heterozygous purple flowered plants are
crossed with each other, then what are the possible genotypes of the offspring?
0
Answer is pp only
Answer :the answer is D
Explanation:
What are the effects of cystic fibrosis
what is an example of a transform boundary? I WILL GIVE YOU THE BRAINLIEST!!!!
what is a good blood pressure?
Answer: A normal blood pressure level is less then 120/80mmHg
Explanation:
Mutations are a source of variation in:
A)asexually reproducing organisms
B)neither option
C)both options
D)sexually reproducing organisms
Pls answer fast!!!! Timed!!!
Which of these descriptions best contrasts safety knowledge for cows and horses?
A. Horses have a definite flight zone, whereas cows do not
B. Cows will startle at sudden movement or noise, but horses do not.
C. Cows have a definite flight zone, whereas horses do not.
D. Cows have 360-degree vision, but horses do not
Answer:
Cows have a definite flight zone, whereas horses do not. So the answer is C.
What does "fishing down the food web" mean?
Answer:
Fishing down the food web is the process whereby fisheries in a given ecosystem, "having depleted the large predatory fish on top of the food web, turn to increasingly smaller species, finally ending up with previously spurned small fish and invertebrates".
PLEASE HELP! I DONT UNDERSTAND
what is the equation of Photosynthesis and cellular respiration in a chemical formula?
Answer:
I would type it up, but I decided to insert a picture.
Explanation:
8. Which of the following correctly shows one path that energy would
flow through this ecosystem?
Grasses -- Termite -- Monkey -- Eagle
Hyena -- Mongoose - Mouse - Grasses
Grasses - Termite - Grasshopper -- Monkey
Acadia trees - Giraffe
-- Lion -- Vulture
grassses -- Termite -- Monkey -- Eagle
what bug is this I need to to know.
Answer:
i think beetle bug
Explanation:
the color size dont harm bad
What cell parts are common to all of these cells?
Use complete sentences.
Chlamydomonas
Spirogyra
Elodea
Squamous Epithelium
Answer: All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4). The cells of most Chlamydomonas species are more or less oval and feature a noncellulosic membrane (theca), a stigma (eyespot), and a usually cup-shaped chloroplast. Although photosynthesis occurs, nutrients also may be absorbed through the cell surface. Asexual reproduction is by zoospores. The filamentous masses come to the surface and become visible as slimy green mats. Spirogyra has a cell wall, nucleus, pyrenoid and spiral chloroplasts. This Elodea leaf cell exemplifies a typical plant cell. It has a nucleus, and a stiff cell wall which gives the cell its box-like shape. The numerous green chloroplasts allow the cell to make its own food (by photosynthesis). The central vacuole takes up most of the volume of the cell. Squamous cells tend to have horizontally flattened, nearly oval-shaped nuclei because of the thin, flattened form of the cell. Squamous epithelium is found lining surfaces such as skin or alveoli in the lung, enabling simple passive diffusion as also found in the alveolar epithelium in the lungs. brainliest?
Explanation:
What is the difference between Gene Pool, Genetic Drift and Gene Flow?
Answer:
Genetic drift is referred to the changes in allele frequency in a gene pool. Gene flow is the process of alleles moving from one population to another.
Explanation:
During transcription, initiation involves the attachment of RNA polymerase to the promoter and the start of RNA synthesis.
Group of answer choices
True
False
Answer:
true
Explanation:
True. During transcription, initiation is the first step in which RNA polymerase binds to the promoter region of the DNA molecule.
The promoter is a specific sequence of nucleotides located upstream of the gene that signals the start site for transcription. RNA polymerase recognizes and binds to the promoter sequence, forming a complex called the transcription initiation complex.
Once the transcription initiation complex is formed, RNA synthesis begins. RNA polymerase unwinds the DNA double helix in the region of the gene, exposing the template strand. It then catalyzes the synthesis of an RNA molecule by adding complementary RNA nucleotides to the growing RNA chain according to the base pairing rules (A-U and G-C).
So, the statement "During transcription, initiation involves the attachment of RNA polymerase to the promoter and the start of RNA synthesis" is true. Initiation is indeed the process where RNA polymerase binds to the promoter and initiates the synthesis of an RNA molecule based on the DNA template. This is a crucial step in the process of transcription, as it determines where and when the transcription of a specific gene will occur.
To learn more about transcription, here
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Need help with this!! I’m not good at writing these.
Answer:
The difference between ethical, and finally scientific questions, are based upon their root word. Such as an ethical question may involve race and heritage, while a legal question may involve anything that involves the law such as court questions and can be resolved by the judge not the jury. Finally scientific questions can involve a question thats mainly based around science such as items that you can test or measure.
Oxygen molecules are sixteen times as massive as hydrogen molecules.
At the same temperature, which type of molecule would you expect to move faster?
Answer: hydrogen molecules.
Explanation: in same temperature molecules have same average kinetic energy.
You can estimate it solving E = 3/2 kT = 1/2 mv². Constant k is Boltzmann constant.
Lighter molecule has greater speed
*15 points* Earth Science
Based on the picture, how many tilting events has this area undergone, and which principle tells us that this area has undergone tilting?
Definition: States that all living things are composed of cells, cells are the basic unit of life, and cells
come from pre-existing cells.
Example: Combined efforts of Hooke, Leeuwenhoek, Schleiden, Schwann, and Virchow
Term: Type term here
Explaination and Answer:
In biology, cell theory is the historic scientific theory. That living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction. The three tenets to the cell theory are as described below: All living organisms are composed of one or more cells. The cell is the basic unit of life.
Why may an asthmatic patient produce a wheezing sound and difficulty in breathing
Answer:
Wheezing happens when the airways are tightened, blocked, or inflamed, making a person's breathing sound like whistling or squeaking. Common causes include a cold, asthma, allergies, or more serious conditions, such as chronic obstructive pulmonary disease (COPD).
Explanation:
These weeds are growing in a farmer's field. The weeds compete with the soybean plants the farmer grows, so he needs to get rid of them. For a few years, the former relies on manually removing the woods, but that is labor intensive and limits how much crop he can grow. The farmer decided to change his crop to genetically modified soybeans that are herbicide resistant. This allows the farmer to use chemicals to remove the weeds. With this GM soybean, the chemical kills the woods but does not harm the crop. For many years this works, and allows the farmer to expand his farm and grow more soybeans. But then, one of the farmer's fields has a large weed plant remaining after the field has been sprayed with herbicide
1. Which of the following is the likely reason the weed has remained?
a. The weed needed to be resistant in order to survive, so it became resistant
b. A mutation appeared in one weed plant that made that weed not susceptible to the herbicide
2. Which of the following is likely to happen if that weed stays in place?
a. The trait will spread to nearby weeds
b. The weed will survive long enough to reproduce
c. In time, the herbicide will no longer be effective on that field.
Answer:
1) A mutation appeared in one weed plant that made that weed not susceptible to the herbicide ( B )
2) The weed will survive long enough to reproduce ( B )
Explanation:
1) The most likely reason the weed remained is : A mutation appeared in one weed plant that made that weed not susceptible to the herbicide
The weed plant must have undergone some mutation in order to be resistant to the herbicide which would kill the weed before now
2) The most likely thing that will happen if the weed stays in place in that farm is : The weed will survive long enough to reproduce
The trait or mutation of the weed cannot just spread to other weeds nearby it can only spread by reproducing more weeds of same mutation
#SaveTheTrees
We can do this
Answer:
#SaveTheTrees
Answer:
Donate or plant a tree!
Explanation:
https://teamtrees.org/
https://www.greenamerica.org/save-trees
Both Mrs. Smith and Mrs. Jones had babies the same day in the same hospital. Mrs. Smith took home a baby girl named Shirley. Mrs. Jones took home a baby girl named Jane. Mrs. Jones began to suspect, however, that her baby had been accidently been switched with the Smith baby in the nursery. Blood tests were made. Mr. Smith was blood type A, Mrs. Smith was type B, Mr. Jones was type A, Mrs. Jones was type A. Shirley was type O, and Jane was type B. Had a mix-up occurred? SHOW WORK!
Answer:
yes a mixup had occured because two A blood types would result in a baby with the same blood unle mr.jones wasnt the father
Explanation:
Which of these is a difference between DNA and RNA?
DNA is found in the nucleus; RNA is never found in the nucleus.
DNA consists of five different nucleotides; RNA consists of four different nucleotides.
RNA is double-stranded; DNA is single-stranded.
DNA contains thymine; RNA contains uracil.
In DNA, adenine pairs with guanine; in RNA, adenine pairs with thymine.
Like DNA, RNA is made up of nucleotides. There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Which gas is least abundant in Earth's atmosphere? EXTRA POINTS
A .A
B .B
C .C
D .D
What is the name of the bond that is created when two amino acids
Answer: peptide bonds
Explanation: I think that's the answer.
according to darwin’s on the origin of species, what four factors
Answer:
(1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.
Explanation:
Which of the following fresh water biomes consists of moving water
Answer:
Biomes consists of moving water is estuaries.
A flounder lies motionless on the sandy bottom of the ocean floor. It blends in so well with its environment that predators cannot see it. How does this help the flounder?
Question 1 options:
It helps the flounder reproduce.
It helps the flounder find food.
It helps the flounder defend itself.
It helps the founder move from one place to another.
Question 2 (1 point)
Which of the following is an example of mimicry?
Question 2 options:
A newborn fawn hides among tall grasses near the forest’s edge.
Gelada baboons live in a large troop on a high cliff in Ethiopia.
A spitting cobra spits venom at a predator that come near.
A viceroy butterfly has the same markings as a bad-tasting monarch butterfly.
Question 3 (1 point)
Saving...
When a group of small fish gathers themselves together, as in the image below, possibly giving the appearance of a larger animal, which defensive technique is being used?
Question 3 options:
Mimicry
Ejection
Grouping
Camouflage
Question 4 (1 point)
Which of the following statements best describes what will most likely occur to the moth populations in the image below?
Question 4 options:
The light moths will be captured by predators more easily than the dark moths, and the population of dark moths will rise.
The light moths will be captured by predators more easily than the dark moths, and the population of light moths will rise.
The dark moths will be captured by predators more easily than the light moths, and the dark moths will probably go extinct.
The light moths will change their wing color to match that of the dark moths.
Question 5 (1 point)
What is the most likely explanation of the data shown below?
data table
Question 5 options:
There has been a drought in the area that is affecting all life forms.
The population of natural predators of the moths has gotten smaller.
The moths are living in an environment with light trees.
The moths are living in an environment with dark trees.
Question 6 (1 point)
Suppose a certain species of insect lives in the lush green canopy of the rain forest. Some of the insects are bright green in color, and some are bright yellow. Assume there is a natural predator of the insect in the area. What do you expect to happen to the populations of the green and the yellow insects over time?
Question 6 options:
The green insect population will increase and the yellow insect population will decrease.
The green insect population will decrease and the yellow insect population will increase.
Both insect populations will remain constant over time.
Both insect populations will increase over time.
Question 7 (1 point)
Which of these examples describes a structure penguins use for movement?
Question 7 options:
A penguin stands with a group of other penguins when a predator approaches.
A penguin holds an egg under its feathers to keep it warm
A penguin uses sleek, smooth belly feathers to slide on ice
A penguin holds a squid in its bill.
When grading the question, it w
Question 8 (1 point)
Moles live underground and have several adaptations to this environment. For what purpose are their oversized paws and claws most useful?
Question 8 options:
Fighting off predators
Gathering food
Digging holes and tunnels for food
Mating
PLEASE HELP
Answer:
The first one is It helps the founder defend itself
The second one is A viceroy butterfly has the same markings as a bad-tasting monarch butter fly
The third one is Mimicry if im wrong do grouping
The fourth one is The light moths will be captured by predators more easily than the dark moths, and the population of the dark moths will rise
The fifth one is TBH i cant answer it i dont see the table
The sixth one is The green insect population will increase and the yellow insect population will decrease
The seventh one is A penguin uses sleek, smooth belly feathers to slide on ice
The eight one is Digging holes and tunnels for food
Explanation:
I answered these on the most logical reasons. I did not search these up anyways if im wrong tell me the ones that were wrong.
Which organism described below makes its own food?
yoo yoo ill rlly apriciate if someone helps me