An amoeba that lives in salt water does not have a contractile vacuole to do so.
Explain observations.

Answers

Answer 1

Answer:

what do we call a mutation that involves one or just a few nucleotides


Related Questions

Which property is shared by the cells of all living things?

Answers

Answer:

cells, growth, reproduction, adaptation, homeostasis, use of energy and response to the environment

The property that is shared by the cells of all living things the cells contain DNA composed of adenine, thymine, guanine, and cytosine. The correct option is A.

What are living things?

Living things are those things that are alive, The main property of a living thing can distinguish them from non-living things. These properties are growth and reproduction.

The living cells are those cells that made all the living matter. The living cell is composed of macromolecules. The cell is composed of DNA and different cell organelles.    

DNA is present in every living organism. It determines the genetic difference of every organism. It is the same in every cell.

Thus, the correct option is A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.

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The question is incomplete. Your most probably complete question is given below:

A. The cells contain DNA composed of adenine, thymine, guanine, and cytosine.

B. The cells have chromosomes that are located inside a membrane-bound- nucleus.

C. The cells are surrounded by a phospholipid bilayer and a cell wall made of

cellulose.

D. The cells rely on mitochondria to carry out aerobic cellular respiration.

Carbon, Hydrogen, and Chlorine atoms combine chemically. What best describes this
combination that is the result?
Atom
Compound
Element

Answers

Consideting the definition of compound, the correct answer is second option: Carbon, hydrogen and chlorine atoms combine chemically, forming compounds.

A compound is any substance formed by the union of two or more types of chemical elements, linked together by chemical bonds.

In other words, A chemical compound is the substance that results from the combination of two or more different chemical elements linked under a certain arrangement and in certain proportions.

Each compound has a chemical name (which responds to certain nomenclature rules) and a formula that indicates the elements it is composed of and the number of atoms each contains.

Then, the correct answer is second option: Carbon, hydrogen and chlorine atoms combine chemically, forming compounds.

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the nucleus acid (blank) copies DNA so (blank) can be made

Answers

Answer:

RNA, Protein

Explanation:

The cell uses RNA as a messenger to carry the instructions to make proteins.

Vhich molecules store information related to the function of a cell in the form of a coded message!

A

nucleic acids

B

lipids

C

enzymes

D

carbohydrates

Answers

Answer:   The correct answer is A. nucleic acids.

Explanation:   The genetic information is stored in the form of nucleic acids i.e. deoxyribonucleic acids (DNA) or ribonucleic acids (RNA).

Nucleic acids are large macromolecules in cells and viruses. Nucleic acids store and express genetic data. Therefore, option (A) is correct.

What are nucleic acids?

The biopolymers and macromolecules known as nucleic acids are fundamental to every known type of living being. Nucleotides, which are the monomers that make up nucleotides, are composed of a 5-carbon sugar, a phosphate group, and a nitrogenous base. They are the building blocks that make up nucleotides. Deoxyribonucleic acid and ribonucleic acid are the two primary subgroups that can be found among nucleic acids.

Nucleic acids, including deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are responsible for carrying genetic information. This information is read in cells and used to produce RNA and proteins, which are necessary for the functioning of living things.

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which of the following is not an abiotic factor in the prairie ecosystem a water b sunlight c grass d soil​

Answers

Answer:

Grass

Explanation:

Biotic means living. There are some obvious abiotic factors here. The only gray area is what "soil" encompasses

grass-Biotic means living, all of the other choices are not living, and would therefore be abiotic factors

This is because it is a living thing (performs photosynthesis and cellular respiration).

Biotic means living, all of the other choices are not living, and would therefore be abiotic factors

what is the main artery that carries blood to your lungs

Answers

Answer:

Pulmonary arteries

Explanation:

Hope this helps.

2. Which structures must be present in a cell for osmosis to take place?
A. Cell (sap) vacuole and cell wall
B. Cell wall and cell membrane
C. Chloroplast and cytoplasm
D. Cytoplasm and cell membrane

Answers

D- Chloroplast and cell membrane

Cytoplasm and cell membrane

How can you avoid or manage
Type 1 and Type 2 diabetes

Answers

Answer:

as we all know, diabetes can only be prevented by eating very very very less sugar. Diabetes type 1 and 2 can be prevented both by eating sugar free meals

I NEED HELP SO BAD MY TEACHER IS STARING AT ME
Imagine that a disorder that causes the cell cycle to stop affects the muscle cells of a frog’s leg. What consequence is most likely to follow?

A.The frog will immediately not be able to use the muscle.
B. An injury to the muscle will not heal.
C. The frog will not be able to reproduce.
D. A broken bone in that leg will not mend.

Answers

D .. A BROCKEN BONE IN THAT LEG WILL NOT MEND

what are the three pairs of funiculi in the spinal cord?

Answers

Answer:

In each half of the spinal cord, white matter is divided into three major bundles, called funiculi. The dorsolateral sulcus marks the division between dorsal funiculus and lateral funiculus.

Explanation:

which pathway allows for the breakdown of carbohydrates by splitting glucose molecules to form pyruvate?

Answers

Answer:

Catabolic pathways

Explanation:

Catabolic pathways release energy by breaking down complex molecules to simpler ones.

For example, in cellular respiration, glucose is being breaking down into CO2, H2O, and ATP.

The pathway for the breakdown of glucose to form pyruvate is called glycolysis

What is catabolism?

Catabolism is the metabolic reaction in which large molecules ate broken down into smaller molecules with the release of the energy.

Examples of catabolic reactions include those that break down carbohydrates, lipids and proteins.

The pathway for the breakdown of glucose to form pyruvate is called glycolysis.

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a deposit of plaque on or within the arterial wall is known as a/an:

Answers

Answer:

Atherosclerosis

Explanation: It is a condition characterized by the formation of fatty plaques on the inner walls of the arteries

Why is knowledge and skills important in animal care and breeding? Explain in 3 to 5 sentences.

Answers

Answer:

to be thorough and pay attention to detail.

the ability to use your initiative.

to be flexible and open to change.

patience and the ability to remain calm in stressful situations.

the ability to work well with others.

the ability to accept criticism and work well under pressure.

To be successful as an animal breeder, you should have knowledge of the animal breeding process

a passion for animal breeding,

and knowledge of the potential risks of animal breeding.

Ultimately, a top-notch animal breeder should be an effective communicator, have good organizational skills, and be physically fit.

Which of the following is monocotyledonous seed? / खालीलपैकी एकबीजपत्र असणारे बी कोणते ?

sunflower / सूर्यफूल

lentils / मसूर

beans / घेवडा

maize / मका​

Answers

lentils is monocotyledonous

An atom that has twelve protons in its nucleus has an atomic number of:
24
13
12
none of the above

Answers

Answer:

Protons-12, Electrons-12, Neutrons-12

Answer

12 would be the correct answer

which famous composition duo was known for creating many influential operettas?

Answers

The famous composition duo that existed in history and work to create an operettas that is very famous  are Gilbert and Sullivan.

Operetta can be regarded as a form of theatre as well as  a genre of light opera. This concept entails spoken dialogue as well as songs

Gilbert and Sullivan were men that work hand in hand to create influential operettas in history.

They were a famous Victorian-era theatrical that engaged in partnership of dramatist , they work hand in hand to achieve a great fit around 1830s.

Therefore, Gilbert and Sullivan are great men in operetta world

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where does the energy used to produce atp in the light reactions of photosynthesis come from?

Answers

Answer:

I don't know it can you help me

A living thing that is made of one or more cells uses energy, moves, responds to its environment, adjusts, reproduces, has a metabolism, and ingest nutrients is a (an)

Metabolism
growth
organism
respiration​

Answers

I believe the answer is an organism. I wish you luck!!

what would happen to you metabolically if all your mitochondria were destroyed

Answers

Answer:

You would die

Explanation:

if you lost your mitochondria you would die

The loss of functional mitochondria would result in a severe energy crisis within the cell, affecting ATP production and impairing Fatty acid metabolism and calcium homeostasis.

Mitochondria are known as the "powerhouses" of the cell because they are responsible for producing most of the cell's adenosine triphosphate (ATP).

The following processes would be affected:

1. ATP production:  Without functional mitochondria, ATP production would be significantly reduced, leading to a severe energy deficit within the cell.

2. Oxidative phosphorylation: Mitochondria are crucial for oxidative phosphorylation, a process that occurs in the inner mitochondrial membrane and generates a large amount of ATP. Without intact mitochondria, oxidative phosphorylation would be disrupted, impairing ATP synthesis.

3. Metabolism of fatty acids: Mitochondria are involved in the breakdown of fatty acids through a process called beta-oxidation. If mitochondria were destroyed, the ability to efficiently metabolize fatty acids would be compromised.

4. Reactive oxygen species (ROS) regulation: If mitochondria were destroyed, the regulation of ROS levels would be impaired, potentially leading to oxidative damage and disruption of cellular processes.

5. Calcium homeostasis: Mitochondria are involved in maintaining calcium homeostasis within cells. Loss of functional mitochondria would disrupt calcium regulation, which could affect various cellular functions, including muscle contraction, enzyme activity, and cell signaling.

Therefore, the loss of functional mitochondria would result in a severe energy crisis within the cell, affecting ATP production and impairing various metabolic processes.

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What determines how chromosomes line up during meiosis?

Answers

The spindle fibers will move the chromosomes until they are lined up at the spindle equator. Metaphase: During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate. Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate


Microorganisms often lead to infection because they-

Answers

Hi!

Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease, which typically happens in a small proportion of infected people, occurs when the cells in your body are damaged as a result of infection, and signs and symptoms of an illness appear.

A dichotomous key uses
inferences.
DNA sequences.
subjective descriptions.
observable characteristics.

Answers

Subjective descriptions

Answer:

Explanation:,jkh,gf nvcbnhjm,uky7gti6drhfxcgnbhyjmu,iop'9u08[y7pt6of75rijmh

skeletal muscle exhibits alternating light and dark bands called

Answers

Skeletal muscle exhibits alternating light and dark bands called a sarcomere

Skeletal muscle is having sarcomere having myofibrils which appear dark and light in the microscope.

What is skeletal muscle?

Only thin filaments containing actin are present in isotropic bands, anisotropic bands are the darker bands (A bands).

Repeating sarcomere sections, which are visible under the microscope as alternating dark and light bands, make up myofibrils.

When a muscle contracts or relaxes, long, fibrous protein filaments called sarcomeres glide past one another. Because of this, skeletal muscle is also known as striated muscle.

Therefore in appearance due to myofibrils composed of the sarcomere look light and dark bands in the skeletal muscle under a microscope.

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help

Facilitated diffusion uses -----------------to help aid some substances across the cell membrane.

Answers

Facilitated diffusion of substances crossing the cell (plasma) membrane takes place with the help of proteins such as channel proteins and carrier proteins.

Facilitated diffusion uses transport proteins to help aid some substances across the cell membrane.

Facilitated diffusion is a passive transport process that enables the movement of specific molecules across the cell membrane with the assistance of transport proteins. While simple diffusion allows small, non-polar molecules to pass directly through the lipid bilayer of the cell membrane, facilitated diffusion comes into play when larger molecules or molecules with charges need to cross.

Transport proteins act as gateways or channels in the cell membrane. They are selective and only allow specific molecules to pass through. There are two main types of transport proteins involved in facilitated diffusion: channel proteins and carrier proteins.

Channel Proteins: These proteins form pores or channels in the cell membrane, allowing certain molecules, such as ions or water, to pass through. Channel proteins are highly specific and only allow certain substances to cross.

Carrier Proteins: These proteins undergo a change in shape to "carry" molecules across the membrane. When a specific molecule binds to the carrier protein, it triggers a change in the protein's shape that transports the molecule across the membrane. Once the molecule is released on the other side, the carrier protein returns to its original shape.

Facilitated diffusion is a crucial process for maintaining the balance of ions and molecules inside and outside the cell. It's important for the transport of nutrients, ions, and other essential molecules that may be too large or polar to diffuse directly through the lipid bilayer. The involvement of transport proteins ensures that only specific substances are transported, preventing unwanted molecules from entering or leaving the cell. Overall, facilitated diffusion is a highly regulated process that contributes to the homeostasis of the cell and the overall functioning of the organism.

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5. What muscle is below the deltoid and is attached to the ulnar process? How many heads does this muscle have?

Answers

Answer:

What muscle is below the deltoid and is attached to the ulnar process? How many heads does this muscle have?

Explanation:

Triceps is the muscle that is responsible for the extension of elbow joint and also contribute to extension of shoulder joint. This muscle have three origin, that's why the name triceps. The triceps muscle has three heads which are:

A. The long head originates from the infraglenoid tubercle of scapula.

B. The lateral head originates from above the radial Grove in humerus.

C. The medial head originates form below the radial Grove in humerus.

These heads meet to form the body of triceps which gets inserted as triceps tendon in the olecranon process of ulna just behind the elbow. The contraction of this muscle causes the extension of the elbow joint.

Deltoid muscles are in your shoulder, which is the ball-and-socket joint that connects your arm to the trunk of your body. Deltoid muscles help you move your arms in different directions.

What is Deltoid muscle?

The muscle known as the triceps is in charge of extending the elbow joint and helping to extend the shoulder joint. The name triceps refers to the fact that this muscle has three origins.

The scapula's infraglenoid tubercle is the source of the long head. In the humerus, the lateral head develops from above the radial Grove. In the humerus, the medial head develops from below the radial grove.

The triceps body is formed when these heads come together, and it is placed as the triceps tendon in the ulna's olecranon process, right beyond the elbow. The elbow joint extends as a result of this muscle contracting.

Therefore, Deltoid muscles are in your shoulder, which is the ball-and-socket joint that connects your arm to the trunk of your body. Deltoid muscles help you move your arms in different directions.

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Define Photosynthesis and include chemical equation

pls help I’m not sure how to phrase it!!

Answers

Answer:

Photosynthesis is the process whereas plants convert light energy into chemical energy, through cellular respiration. That can later fuel the organism's activity.

Equation: 6CO2 + 6H2O → C6H12O6 + 6O2

Explanation:

Answer:

Hey there,

Photosynthesis means,

The process of using carbon dioxide and water as raw materials to produce food with the help of light energy in the chlorophyll areas of the plant.

The chemical equation is attached to the picture.

Hope this helps you.

Let me know if you have any other questions :-)

How are male and female reproductive organs similar?

Answers

Answer: They are the same in that most of the reproductive organs of both sexes develop from similar embryonic tissue, meaning they are homologous. Both systems have gonads (male have testes and female have ovaries) that produce gametes (testes produce sperm and ovaries produce egg or ovum) and sex organs.

pure water has a pH of_
a. 6
b. 7
c. 8
d. 9​

Answers

Answer:

It has a pH of 7, so your answer is therefore B.) 7.

Answer:

7

Explanation:

Why do you suppose plants and forests appeared in large numbers before large animals did? Several of the choices may be correct. Select the options you expect to be the strongest contributing factors.

Choose one or more:
A. Plants had to change less to survive on land.
B. Animals need food, and there was none on land before plants.
C. The increased oxygen levels produced by land plants accelerated animal evolution.
D. The order was pure chance and could have gone either way.
E. Animals are more susceptible to radiation and needed more ozone in order to survive out of the water.
F. It was too cold for animals at first.
G. There was not enough oxygen for lungs to be effective before plants colonized land.
H. Plants were driven to land by scarce resources in the oceans, such as light and minerals.

Answers

Answer:

It Might Be G im not to sure, sorry if im wrong

Construct the correct sequence of events for meiosis I, starting at the top.
1. Separated homologues cluster at each pole.
2. Paired homologues align at the equator, microtubules attach to kinetochores of sister chromatids.
3. Microtubules shorten, chiasmata are broken, homologous chromosomes are pulled to opposite poles.
4. Nuclear envelope re-forms around each daughter nucleus.
5. Chromosomes condense, forming of spindle apparatus begins, homologous chromosomes pair and crossing over occurs.

Answers

The sequence of events in meiosis I is first 'chromosomes condense and crossing over occurs', second 'paired homologues align at the equator', third 'chromosomes are pulled to opposite poles', fourth 'separated homologues cluster at each pole' and fifth 'nuclear envelope re-forms around each daughter nucleus'.

Meiosis is a reductional cell division by which a parent cell produces four daughter cells with half of the genetic material.

Meiosis can be divided into meiosis I and meiosis II.

During prophase I (meiosis I),

Chromosomes condenseBegins the formation of the spindle apparatus from cytoskeleton present in the cytoplasmThe homo-logous chromosomes pair and crossing over occurs. Crossing over refers to the interchange of genetic material between non-sister chromatids.

During metaphase I,

The homo-logous chromosomes align at the equator plate of the cellThe microtubules attach to the kinetochores of sister chromatids

During anaphase I,

The microtubules shortenThe chiasmata, which link homo-logous chromosomes together until anaphase I, are brokenThe homo-logous chromosomes are pulled to opposite poles, thereby, one chromosome of each pair randomly moves to one pole of the cell and the homologous chromosome to the other.

During telophase I,

The separated homologous chromosomes cluster at each pole of the new cellsThe nuclear envelope is formed around each cell nucleus.

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is it true 30 is 6 times as much as 5? What are they" listening for?A. To tell how species of animals are differentB. To hear the heartbeats of manyanimalsC. To find out if the call of an animalis missing If Team Member must take medications at work, which of the following actions is appropriate?(Select all that apply.)A. Never open a medication near food prep areas or food holding areasB. Take medication only in break areaC. Keep medications in a locker What was the main stated aim of the Corps of Discovery?A. to find articles of tradeB. to map the locations of American IndiansC. to explore the Missouri RiverD. to find an overland route to the Pacific Ocean The following passage (paragraph 6) mainly .The artists, poets, and philosophers of the ancient and classical periods valued reason or rational thinking over emotion or passion. They sought to achieve the ideal or most perfect form in their works, whether it be a sculpture of the idealized human form or an epic poem about an ideal hero. The pursuit of the ideal can be seen through the famous sculpture, the Winged Victory of Samothrace, which shows the goddess of Victory braced against a strong wind as she stands on a ship. Poets and artists communicated these values in both form and content. For example, epic poems and tragedies may have episodes of passion and action, but these dramatic moments are always balanced out by a clear theme about the importance of rational behavior and moral actions. In their lectures, philosophers argued about how to attain these ideals in an imperfect world. Architects built structures that were perfectly balanced and symmetrical.Answer choices for the above questionA. provides the origin stories of ancient Greeces first philosophersB. explains that rationality and order were highly valued in the ancient and classical periodsC. suggests that ancient and classical artists were obsessed by perfection to an unhealthy degreeD. explains why rationality was so important to artists in the ancient and classical periods In a recipe, for every tablespoon of sugar there are four teaspoons of salt. If a batch uses twelve tablespoons of sugar, how many teaspoons of salt does it use? This image may be the result of the 1. Construction for copying line AB2. Construction of a line parallel to line AB through point P3. Construction of a line perpendicular to line AB and line PU.4. Construction of a line perpendicular to the line AB through point PIf mZRQS is 750, then mZTPU is1. 152. 753. 1054.150 simplify the expression. Please help me Which of these is a reason a closed culture ismore thoughtful about change in theorganization?A. Change takes much longer in large organizations.B. Ideas for change are debated in large organizations.C. Hierarchy makes change impossible in large organizations. Atomic NumberAtomic Mass NumberProtonsNeutronsElectronsChargeElement 1612A66BElement 26136CD1+Look at the above table.How many neutrons should be at (C) Element 2 Question 5 options:671113 What is the slope of the line that passes through the points (-4,-2) and (-4,22) how to use union in the real world? I need help, please. Giving right answer branleist Why is the solar cells best option for the rescue team ? Help ill give a brainiest to the first person who answer STATE THE MODULES THAT ARE INCLUDED WHEN LEARNING ECONOMICS. What is 5( x - 3 ) = 5x - 15? HELP WITH ANGLES AGain LOL 52 Where did Hugh Capet establish his capital of France?A MarseillesB OrleansC AvignonD Paris