Which of the following is a key characteristic of metaphase?
Possible Answers:
DNA replicates and there are two copies of each chromosome
The chromosomes move to a narrow central zone of the cell
Chromosomes coil so tightly that they become visible at individual structures
Nuclear membranes form and the chromosomes gradually uncoil
Chromosomes separate and move toward opposite ends of the cell

Answers

Answer 1

Answer:

The chromosomes move to a narrow central zone of the cell

Explanation:

Prophase: nuclear and cell membrane start to disappear

Metaphase: The chromosomes line up in the equator

Anaphase: Spindle fibres pull the chromosomes towards the poles

Telophase: Nuclear and cell membrane start to form

I hope it useful


Related Questions

Non example of a neutron

Answers

Answer:

isotope of the element hydrogen called protium. Protium,

Explanation:

contains a single proton and a single electron, is the simplest atom.

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anabolic metabolism is most similar to:
a. a car crashing into a wall at high speed
b. asexual reproduction in amoebas
c. a pump pushing water through a pipe
d. building a house of bricks

Answers

Answer:

Metabolism is defined as all the various processes in the body, which yield energy for the proper functioning of the organs and body. metabolism can be categorized into anabolism and catabolism. The correct option is building a house of bricks.

Explanation:

Anabolism is defined as the ‘building up’ of compounds, molecules, or other substances. The example that best explains anabolism is building a house of bricks. Anabolism is the synthesis of complex substances from simpler or monomeric units. Anabolism is termed as constructive metabolism, such that the complex molecules formed from simple molecules have stored form of energy.

A car crashing into a wall at high speed determines the breakdown of resources, such as walls, bricks, and cars. The crashing of the car can resemble catabolism, which is defined as the breakdown of complex substances into smaller substances.

Asexual reproduction is a biological process in which offspring are clone to the parent cell. In amoeba, the parent cell splits into two daughter cells, which have the same genetic information as the parent cell. The splitting of the parent into daughter cells is termed binary fission. The process resembles catabolism.

The pump pushing the water from a pipe is a type of example of pressure difference. The water flows from high pressure to low pressure, which results in the pushing of water out of the pipe. Thus, the activity does not exhibit any type of metabolism.

Connective tissue are expamles of???

Answers

Answer:

Tendons.

......Hope it helps you....

4. Estimate the size of the outlined (yellow) onion cell under high power (40x). Use the dFOV values calculated from question no. 3. 10 points​

Answers

The following formula is useful to determine the size of the cellSize of the object = FOV / Fit number = dFOV / Fit number. If you have this data, you can estimate the size of the onion cell. According to the values we used, the estimated size of this onion cell is 112 μm.

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Cells are too small to measure their sizes, so to know their actual size, we can make mathematical estimations to know their sizes, or we can use software programs. In this case, we are estimating their size using the following formula,

Size of the object = FOV / Fit number = dFOV / Fit number

Size of the object = size of the cellFOV = eyepiece (mm)/objective magnification               Fit number = The number of times the object -cell- fits in the field of view

To answer this question, we will replace the terms in the given formula.

→ First, we will get the FOV value. From references, we can assume that

under 4X  ⇒ FOV = 4.5 mmunder 10X ⇒ FOV = 1.8 mmunder 40X ⇒ FOV = 0.45 mm

You can also calculate the FOV by using a millimeter paper or rule.

Note: We will use these values to replace terms in the formula, but you can use the dFOV value calculated in question no. 3.

→ Second, we will count the number of cells that fit the field. We can see about four cells across the field of view.

→ Finally, we will replace the terms in the formula.

Size of the object = FOV / Fit number

Size of the object = 0.45 mm / 4

Size of the object = 0.112 mm

Since we generally use μm when referring to cell sizes, we need to multiply 0.112 x 1000 to get the size of the cell expressed in μm.

Size of the cell (μm) = 0.112 mm x 1000 = 112 μm

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What is the definition of wavelength​

Answers

Answer:

The wavelength is the distance between 2 crests or troughs

(crests and troughs are the maximum upwards and downwards displacement from the equilibrium). Another way to phrase this is the length of one complete wave cycle.

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Which best describes emerging scientific ideas?
never been tested
unpublished
supported by most, but not all, scientists
not yet studied by many scientists

Answers

If it says describe you need to say three points about the source

A. Ribosomes
B. cytoplasm
C. Golgi apparatus
D. Cell membrane
E. DNA

Answers

Ribosomes and cell membrane

Answer:

The following is not found in both pro and eukaryotic cells are

1)Ribosomes

2)DNA

Match each term to its description.
Match
Term
Definition
Conservation
A) The process of wearing down, becoming weaker
Degradation
B) Animals eating vegetation at a rate faster than it can grow back
Exploitation
C) Saving of a resource by managing how it is used
Overgrazing
D) Unfair and unequal treatment of people or use of resources

Answers

The process of wearing down a substance leads to degradation, and the process of eating vegetation by the animal at a faster rate is called overgrazing. Thus, the correct options are A. 2, B. 4, C. 1, and D. 3.

What is degradation?

Degradation is the process of wearing down the substance by the action of air, water, etc. which leads to erosion and weakening resulting in the formation of smaller particles. Hence, A. 2 is correct.

When the animals eat vegetation at a higher rate than their production causes the loss of food and decreases the carrying capacity in the process called overgrazing. Hence, B. 4 is correct.

Conservation is the process of saving resources by their effective uses, and exploitation is the unequal and unfair treatment and use of the resources and organisms. Hence, C. 1, and D. 3 are correct.

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If the amount of predators in the mice environment increased, the mices carrying capacity would_____. (Increase/Decrease) because...​

Answers

Answer:

If the amount of predators in the mice environment increased, the mices carrying capacity would_Decrease____. (Increase/Decrease) because.

Explanation:

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How are biomes related to ecosystems?

Answers

Answer:

Biomes are large regions of the world with similar plants, animals, and other living things that are adapted to the climate and other conditions

Answer:

Biomes are large regions of the world with similar plants, animals, and other living things that are adapted to the climate and other conditions. An ecosystem is often much smaller than a biome, although the size varies. Ecosystems are the interactions between the living things and the nonliving things in a place.

Explanation:

hope this helps

Please help quickly! I don’t know how to fill this out!

Answers

Answer:

biosphere-sugar cane fields,earthworm in soil,moss in a forest

hydrosphere-iceberg,river,clouds

lithosphere-rock formation,sand dunes,soil

atmosphere-top of earths atmosphere,The region of space occupied by Earth's atmosphere.

Explanation:

A disadvantage of sexual reproduction in plants is (1 point)
O the two-generation system.
O additional energy needs to complete a life cycle.
O excess genetic material from two parents.
O genetic variation.

Answers

genetic variation is the answer

How many deciliters are there in one liter?

Answers

Answer:

I think its 10

Hope this helps but I might be wrong

What is an enzyme? Choose all that apply.

A protein that decreases the activation energy needed for a particular reaction

A catalyst for nonspecific reactions

A highly specific protein that is not involved in biochemical reactions

A catalyst for reaction in nonliving systems

A protein that catalyzes the reaction of specific substrates

A catalyst for biochemical reactions

Answers

Answer:

A protein that decreases the activation energy needed for a particular reaction

A protein that catalyzes the reaction of specific substrates

A catalyst for biochemical reactions

The definition of enzyme is that a protein that decreases the activation energy needed for a particular reaction, a protein that catalyzes the reaction of specific substrates and a catalyst for biochemical reactions. Thus, options A, E, and F are correct.

What are enzymes?

Enzymes are known as the the biological catalyst that speed up the chemical reaction that carries out in the body. Enzymes are said to be protein by nature and there are number of the enzymes present in our body such as salivary amylase, pepsin, renin, lyases, lygases etc.

The main function of enzyme has to make the metabolism fast as well as speed up the chemical reaction carried out in the body.The best example of enzyme has to salivary amylase which has an enzyme and it has present in the saliva and helps in the digestion of food.

A protein that decreases the activation energy needed for a particular reaction, a protein that catalyzes the reaction of specific substrates and a catalyst for biochemical reactions.

Therefore, a protein that catalyzes the reaction of specific substrates and a catalyst for biochemical reactions. Thus, options A, E, and F are correct.

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A scientist sets up an experiment to see how colored lights affect the height of plant growth. He grows one group of plants in full sunlight, one group under red lights, one group under blue lights, and one group under green lights. All the plants are exactly that same type and all receive an equal intensity (brightness) of light. At the end of the experiment he measures all the plants. What is the dependent variable?
A) The intensity of the light
B) The color of the light
C) The height of the plant
D) Sunlight

Answers

Answer:

C) The height of the plant

Explanation:

Dependent variable - is the variable that can not be manipulated and the one that's being observed.

[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]

Which of the following is an example of anaerobic respiration?
A. Plant roots respiring in soil
B. Lactic acid building up causing sore muscles
C. Oxygen diffusing into a plant cell through stomata
D. Breaking down of glucose with oxygen inside an animal cell

Answers

Answer:

Answer: Lactic acid building up causing sore muscles

Explanation:

Got it right on the test.

An example of anaerobic respiration is lactic acid building up, causing sore muscles. The correct option is B.

What is anaerobic respiration?

Anaerobic respiration is respiration that occurs in the absence of oxygen. When we exercise or run, more amount of oxygen is needed, so there is less oxygen remaining for the reactions, these reactions occur in absence of oxygen.

Thus, the correct option is B.

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The red blood cells in the 0.10 mol dm-3 salt solution burst.
Explain why the red blood cells burst.​

Answers

Answer:

red blood cells burst.

Explanation:

Red blood cells placed in a solution with a higher water concentration compared to their contents (eg pure water) will gain water by osmosis, swell up and burst. Water will diffuse from a higher water concentration outside the cell to a lower water concentration inside the cell.

https://www.bbc.co.uk › revision

The effects of osmosis on animal

Red blood cells placed in a solution with a higher water concentration compared to their contents will gain water by osmosis, and get swell up and burst.

What is red blood cells and its function?

Red blood cells are responsible for transporting oxygen from your lungs to your body's tissues. Your tissues produce energy with the oxygen and release a waste, identified as carbon dioxide.

What is red blood cells?

A type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body.

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Describe how scientific investigations lead to new scientific questions.

Answers

Answer:

Scientific investigations produce evidence that helps answer questions and solve problems. If the evidence cannot provide answers or solutions, it may still be useful. It may lead to new questions or problems for investigation. As more knowledge is discovered, science advances.

Scientific investigations produce evidence that helps answer questions and solve problems. If the evidence cannot provide answers or solutions, it may still be useful. It may lead to new questions or problems for investigation. As more knowledge is discovered, science advances.

why is mucor and vaucheria an exception to the cell theory?​

Answers

Answer:

Explanation:

Exceptions to cell theory are

1. Viruses: They contain only genetic material. Protoplasm is absent. Active or show signs of life only in a living cell

2. Coenocytic organisms: Vaucheria and fungi belonging to Phycomycetes are filamentous with continuous protoplasm and many nuclei, that is the filament is not divided typically into cells, with single nucleus that undergo division periodically.

Visualize It!
6 Identify Name three examples of matter found in
this photo.

Answers

Answer:

bag, human beings and bridge

Solved numerical: 1. A bullet having mass 15kg is shot with a velocity of 60m/s. Calculate the kinetic energy of the bullet.​

Answers

Answer:

27,000

Explanation:

Kinetic energy = (1/2) x mass x velocity²

15. The human body has

Answers

Is that the question?!

The human body is a single structure but it is made up of billions of smaller structures of four major kinds: cells, tissues, organs, and systems. An organ is an organization of several different kinds of tissues so arranged that together they can perform a special function.

cell. What type of cell does the picture
5 points
The model below shows a type
show?
och a
-Q
O a eukaryotic cell, because it contains chloroplasts
a prokaryotic cell, because it contains energy releasing mitochondria
Ο Ο Ο Ο
O a eukaryotic cell, because it contains a nucleus
O a prokaryotic cell, because it has compartmentalized organelles

Answers

Answer:

mitochondrion, membrane-bound organelle found in the cytoplasm of almost all eukaryotic cells (cells with clearly defined nuclei), the primary function of which is to generate large quantities of energy in the form of adenosine triphosphate (ATP). Mitochondria are typically round to oval in shape and range in size from 0.5 to 10 μm. In addition to producing energy, mitochondria store calcium for cell signaling activities, generate heat, and mediate cell growth and death.

Explanation:

PLEASE HELP!!!!!
The pizza that you ate for lunch is being digested. Summarize what happens to it in your stomach
The waste materials are compacted and then removed from the body.
O Enzymes from the liver and pancreas break down fats and proteins in the pizza.
O The pizza is mechanically broken up by teeth and mixed with saliva.
O The pizza is churned, mixing it with digestive enzymes and gastric acid.

Answers

Answer:

Enzymes from the liver and pancreas break down fats and proteins in the pizza.

Explanation:

When I ate a pizza the pizza is churned and mixing with digestive enzymes and gastric acid in my stomach.

The stomach is an organ of the digestive system that is located between the intestine and the esophagus and has the function of storing and processing food.

The food reaches the stomach after passing through the esophagus and there it is processed to extract the nutrients from it with the help of the substances secreted by the stomach, which are digestive enzymes and gastric acid.

According to the above, the correct answer is D. because it mentions what happens in the stomach with food.

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write the function of synaps​

Answers

Answer:

The function of synapse is to transmit the electrical impulses from one neuron to other.

Explanation:

hope it help goodluck:)

Answer:

Synaptic function is to transmit nerve impulses between two nerve cells (neurons) or between a neuron and muscle cell. Synapses connect one neuron to another and are thus responsible for the transmission of messages from the nerves to the brain and vice versa.

Explanation:

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What organelle acts as the control center of the cell, with the help of DNA?
a. nuclear membrane b. plasma membrane c. nucleolus d. rough e.r.

Answers

the answer is nucleolus
C. The nucleus is the control center of a cell.

Select the correct answer.
What’s a disadvantage of the point count method of population monitoring?
A.
It leads to the death of the sampled individuals.
B.
It only records trends in population at fixed locations in the ecosystem.
C.
It requires traversing through the ecosystem, which may be difficult in rugged terrain.
D.
It’s only useful for monitoring organisms that are fixed in one place.
E.
It requires capturing the animal for a brief period of time.

Answers

Answer:

it's only useful for monitoring organism that are fixed in one place

Answer:

It only records trends in population at fixed locations in the ecosystem.

Explanation:

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5. A hungry person had a meal, after which the concentration of glucose and amino acids in the blood were determined. This was measured hourly as the blood passed through the hepatic portal vein and the iliac vein in the leg. The results were as shown in the table below. Time (Hrs) Concentration of contents in Concentration of contents in the Hepatic portal vein (Mg/100ml) iliac vein of the leg (Mg/100ml) Glucose Amino acids Glucose Amino acids 85 1.0 85 1.0 1 85 1.0 85 1.0 2 140 1.0 125 1.0 3 130 1.5 110 1.5 4 110 1.5 90 3.0 5 90 3.0 90 2.0 6 90 2.0 90 1.0 7. 90 1.0 90 1.0 a) Using the same axes draw graphs of concentration of glucose in the hepatic portal vein and the iliac vein in the leg against time (7mks) b) Account for the concentration of glucose in the hepatic portal vein from; i) 0-1 hour (2mks) ii) 1-2 hours (3mks) ​

Answers

[tex]\pink {CH_3CH_2OH} {\xrightarrow\red{\text{Hotconc.}}} \purple{CH_2 =CH_2 + H_2O}[/tex]

One of the control measures of mosquito is to spray paraffin oil into the pool of water having its larva. Explain how oil kills the mosquito larva.​

Answers

Answer:

In the present study, the use of oil-film layer and surfactant (Tween 20) was confirmed to be effective in killing mosquito larvae. The use of a surfactant would affect the wettability of the siphon, including the lobes of mosquito larvae.

Scientific inquiry is driven by a scientist’s
creativity.
professionalism.
ethics.
perseverance.

Answers

Answer:

perserverance

Explanation:

they want to find out whats happening through inquiry and experiments.

Other Questions
Help please will mark brainliest ROMAN NUMERALSDirections: In Roman numerals write, answer the following:1. The year 1996:2. 250 plus 31-3. 497 minus 312-4. The year 1776:5. The year 2006: I will give branliest and 15 points 4. Find out mismatched pair.I) Lavoisier - Oxygen2) Joseph Black - Hydrogen3) Priestley - Belljar Why do sex-linked traits follow different patterns of inheritance than other traits? A. Males have two X chromosomes, and females only have one. B. Males carry two copies of every sex-linked gene.C. Males cannot carry recessive alleles for sex-linked traits.D. Males only need one recessive allele to have a recessive sex linked trait. Cual es la importancia del sistema de cultivo chinampero? The respiration rate of a goldfish is measured. The goldfish is then placed in cold water and the respiration rate is measured again Express the following fraction in simplest form,only using positive exponents 10.Write the equation in slope intercept form of a line with m = 3 that passes through (2,-1) 3.Chris wants to see if his basil plants grow better in full sunlight or partial sunlight. Heplants 5 basil plants on the east side of his house that only receives light in themorning, and 5 more plants on the south side of his house that receives light allday. After a month Chris measures the height of each plant.a. Independent Variable =b. Dependent Variable =C. Control = Write an equation in slope-intercept form for the line with slope 15 and y-intercept 3. Then graph the line. what are your personal goals as a writer? Why are rules important? (4 sentences long) (YOUR OWN IDEA) how long do you have To wait To start driving when you pass behind The wheel diary entry about the importance of being diligent learner at school Please help!! Given the graphs of f (x) and g(x), find g (f (4)).g(x)5 69. Evaluate ( a + 1) 2 - 5 when a = -3 The I soldiers were tried in an American court, defended by an American lawyer, and acquitted. Yet the Boston Massacre roused many Americans to anger against Britain. Why do you think that might be? I need a paragraph about this and Im struggling dentify the term for knowledge of health information needed to make good choices about your Health. What are some viable ways of lessening the effect that increased carbon has on global warming?