Why did the student do three tests and calculate a mean?

Answers

Answer 1

Answer:

to get a good grade???

Explanation:


Related Questions

TIME REMAINING
57:27
The table describes how some substances were formed.

Substance
Description
P
Formed by boiling pure water
Q
Formed by combining three hydrogen atoms to every nitrogen atom
R
Formed by adding 5 g of sugar to 1 L of water
S
Formed by compressing carbon under high pressure

Based on the given descriptions, which substance is most likely a mixture?
P
Q
R
S

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Answer:

Formed by adding 5 g of sugar to 1 L of water

Sugar is consumed by animals, which perform

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The glucose molecule's principal function is to provide energy; it is a fuel. Glucose is a soluble, widely distributed kind of chemical energy that may be 'burned' in the cytoplasm and mitochondria to produce carbon dioxide, water, and energy.

Which of the following is not true concerning the zebra mussel in the united states? a. it was introduced accidentally. b. it was first introduced in the great lakes. c. it is still spreading throughout the united states. d. it can be eliminated from a river with minimal effort. please select the best answer from the choices provided a b c d

Answers

The statement that is not true concerning the zebra mussel in the United States would be option "D" that it can be eliminated from a river with minimal effort.

What are the zebra mussels and why should we care about them?

Zebra mussels are an invasive, fingernail-sized mollusc that is indigenous to freshwaters in Eurasia. Their name comes from the dark, zig-zagged stripes on each shell.

They probably arrive in the Great Lakes in the 1980s via ballast water that was discharged by huge ships from Europe. They have spread rapidly throughout the Great Lakes region and into the large rivers of the eastern Mississippi drainage. .

Thus, option "D" can be eliminated from a river with minimal effort.

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Answer: D

Explanation:  it can be eliminated from a river with minimal

Which statement is correct based on the information provided in the two diagrams?
A. The diagrams both provide support for the theory that the continents have always been
fixed in their current positions.
B. The diagrams have little relationship to each other, as some of the land areas shown on the
diagrams are in different positions.
C. The diagrams support each other by offering two separate sources of evidence that support
the past shapes and positions of the landforms.
D. The diagrams provide support for the conclusion that the process of continental drift ended
when the continents reached their current positions.

Answers

Answer:

c because these graphs are showing how the continents separated

Explanation:

Adipose tissue is made up of cells that have areas for long-term energy storage. An analysis of the structure of the molecules within the cells of adipose tissue show that there are glycerol and fatty acids combining to form the majority of molecules within the cell. The most likely macromolecule type found within the adipose tissue would be which molecule?

A) lipid
B) protein
C) nucleic acid
D) carbohydrates

Answers

Answer:

lipid

Explanation:

lipids are formed by combination of fatty acid and glycerol

a cylinder has a radius of 3 and a height of 5 what is the volume of the cylinder

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I believe the answer to your question is 141.37, I’m not 100% sure if that is correct or not.

explain any five ways, how microganism play an important role in the field of medicine?​

Answers

Microorganisms are useful in the field of medicine:

Microorganisms help in the making of antibiotics and vaccines.

Antibiotics are produced for the treatment of diseases.

In high fever or serious conditions, doctors prescribe antibiotics.

The antibiotic streptomycin is obtained from Streptomyces bacteria.

It is used to cure various bacterial infections such as the plague.

The administration of vaccines is called vaccination.

Vaccines are produced to fight against germs in the body.

The vaccines that have proven effective against germs are influenza vaccine, chickenpox vaccine and HPV vaccine.

MMR vaccine is given for preventing measles.

With help of microorganisms vaccines and antibiotics have contributed widely in the medical field.

Your lab partner tells you the bacteria are moving in his Gram-stained smear. You can conclude that __________.

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Answer:

your lab partner tells you the bacteria are moving in his Graham staines way you can conclude that smear

The role of O2 in electron transport In mitochondrial electron transport, what is the direct role of O2

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Answer:

The only place that O2 participates in cellular respiration is at the end of the electron transport chain, as the final electron acceptor. Oxygen's high affinity for electrons ensures its success in this role.

Explanation: hope this helps

The thylakoids of chloroplasts are the location of several important steps of photosynthesis. Suppose you put chloroplasts in the dark, and then artificially lowered the pH of the interior (lumen) of each thylakoid. What does lowering the pH do to the lumen of the thylakoid

Answers

The answer is A I think

According to scientific thought, when does one species of organisms become two species? Question 2 options: when populations become separated from one another when one population becomes extinct when populations compete for the same resources when one population cannot interbreed with the other population.

Answers

According to scientific thought, the correct option to this is when does one species of organisms become two species When populations compete for the same resources as one population.

When one population cannot interbreed with another then it is called speciation. For example, if a cross between fertile and infertile is produced.

What is the evolutionary procedure of speciation?

The evolutionary procedure of speciation is how one populace of a species modifications over the years to the factor wherein that populace is awesome and might now not interbreed with the “parent” populace. Often a bodily boundary divides the species into two (or more) populations and continues them from interbreeding.

Hence clear it is that populations compete for the same resources when one population.

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Is school important? Yes or No? Worth 40 points

Answers

Answer:

Yes

Explanation:

Provides Stability. Education provides stability in life, and it's something that no one can ever take away from you. By being well-educated and holding a college degree, you increase your chances for better career opportunities and open up new doors for yourself!

 

        :)

The answers you can pick are bone, cartilage, ligament, muscle and tendon

Answers

A. Muscle
B. Tendon
C. Cartilage
D. Ligament
E. Bone

I would appreciate a brainliest! <33

Question 3 (1 point)
RNA is a double stranded molecule made of nitrogen bases Adenine (A), Thymine (T),
Cytosine (C) & Guanine (G).
True
False

Answers

Answer:

False

Explanation:

Adenine, Cytosine, uracil and guanine

Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection
by predators but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light
scaled cousins, and as a result a new species of dark-scaled fish emerges
Which statement accurately describes the scenario?

Answers

According to the given situation, the fish experienced an evolutionary change because of genetic drift.

What is genetic drift?

Genetic drift is the change in the frequency of a present gene variant or allele in a population due to random chance.

Genetic drift may cause gene variants to disappear completely and thereby reducing genetic variation and also causing rare alleles to become much more frequent and evenly fixed.

Thus, the fish experienced an evolutionary change because of genetic drift.

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Answer:

(Q1) An animal is born with a shorter tail. This makes no difference to its ability to survive or reproduce, but as a result of pure luck, the animal survives, reproduces, and passes its shorter tail down to its offspring. Over time, the species develops a shorter tail.

(Answer) genetic drift

(Q2) The process of altering the genome of one species by adding genes from another species in order to gain a beneficial trait is known as

(Answer) genetic modification.

(Q3) Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection by predators, but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light-scaled cousins, and as a result, a new species of dark-scaled fish emerges.

(Answer) The fish experienced an evolutionary change because of genetic drift.

(Q4) Which scenario accurately describes an example of artificial selection?

(Answer) A farmer intentionally breeds oranges to be more resistant to aphids.

(Q5) Over many generations, there is a good chance that an advantageous gene will be shared by every organism of the same species or that a new species will emerge. These long-term outcomes are called

(Answer) evolution.

Explanation:

these are the correct answers for the 2022 school year. hope this helps UwU

What does this have to do with the real world?

Answers

You are in the real world and just typing this on brainly

what effect did Darwin's travels to the Galapagos islands have on the development of his theory of natural selection?

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Answer:

During his visit to the islands, Darwin noted that the unique creatures were similar from island to island, but perfectly adapted to their environments which led him to ponder the origin of the islands' inhabitants. Among those that struck Darwin so greatly were the finches that are now named in his honor.

What does a food web, food chain, and energy pyramid show about an ecosystem? Question 2 options: The flow of energy What organisms eat The diversity of an ecosystem (how many different organisms there are) All of these.

Answers

Answer: 1.A food web is multiple food chains and an energy pyramid shows how energy moves through trophic levels.

Explanation:

Answer to 19 ………………..

Answers

Answer:

C.) Eukaryotic Plant Cell

Explanation:

A.) is incorrect because eukaryotic animal cells do not contain chloroplasts or a cellulose membrane wall.

B.) is incorrect because prokaryotic plant cells do not exist. Plants are always eukaryotes. However, there are some types of prokaryotic algae that undergo photosynthesis like plants.

C.) is correct because eukaryotic plant cells contain all of the listed properties.

D.) is incorrect because prokaryotic animal cells do not exist. Animals are always eukaryotes.

The diagram shows the displayed formula of a substance. How many different elements are there in this substance?

Answers

There are only three elements in the above structural formula above:

Carbon

Hydrogen and

Oxygen

The name of the compound Butan 2 ol. There are different elements such as carbon, hydrogen, and oxygen. Carbon, hydrogen, and oxygen will form hydrocarbons.

What are hydrocarbons?

Hydrocarbons are group of compound formed with a  carbon, hydrogen and oxygen. There are different hydrocarbons such as ethanol, propanol and butanol.

Hydrocarbons are formed by carbon, hydrogen and oxygen. They have some specific functional groups as alcohol, ketone and aldehyde group.

An organic chemical molecule that only contains hydrogen and carbon atoms is referred to as a hydrocarbon. Natural hydrocarbons are the building blocks of coal, natural gas, crude oil, and other significant energy sources.

Therefore, The name of the compound Butan 2 ol. There are different elements such as carbon, hydrogen, and oxygen. Carbon, hydrogen, and oxygen will form hydrocarbons.

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what does ethical mean?

Answers

Answer:

relating to moral principles or the branch of knowledge dealing with these.

Explanation:

Relating to moral principles with a branch of knowledge

1. what is gliding joint?

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Answer:

The unique, flat shape of the articulating surfaces in a gliding joint let the bones slide over one another, often allowing a large range of motion. These joints are present in the spine, wrist, foot, and the clavicle.

Explanation:

Explanation:

i hope it helps on you

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What are the two main components of the nervous system?.

Answers

The central nervous system is made up of the brain and spinal cord. The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.

Bacteria such as E. coli are an excellent model system for genetics studies because they can quickly grow to high densities, allowing us to screen for rare genetic events. These can give rise to different
, which are genetic variants withing a species.

Answers

Quick growth to high densities of bacteria such as E. coli can give rise to mutants which are genetic variants within a species.

Mutants

Mutants are mutated forms of species.

Mutation refers to changes to the DNA base sequence of organisms. This can be caused by a variety of factors.

In a population of high density consisting of a single species, the frequency of mutation is usually high.

Mutation will create phenotypically different organisms within the same species population. These organisms are known as mutants and not only phenotypically different but also genetically variant.

More on mutants can be found here; https://brainly.com/question/12868218

In eukaryotic cells, aerobic respiration occurs in organelles called

Answers

Answer:

the mitochondria

Explanation:

Through aerobic respiration (respiration requiring oxygen), the mitochondria breaks down glucose, with the use of oxygen, to produce ATP energy. Unlike anaerobic respiration, which occurs in the cytoplasm and produces less ATP energy, aerobic respiration occurs in the mitochondria and produces more ATP energy.            

Which of the following are characteristics of a tortoise in a desert environment that distinguish the tortoise as a living thing?

I chose the three top answers, but please correct me if I'm wrong.

Answers

it needs food, it reproduces , it uses energy

Which part of fried shrimp provides the most energy in the form of glucose to help power cellular respiration

Answers

Answer:The breading on the shrimp

Explanation:

A part of fried shrimp that provides the most energy in the form of glucose to help power cellular respiration is known as the breading on the shrimp.

What is Cellular respiration?

Cellular respiration may be defined as a biological process that significantly leads to the production of energy in the form of ATP by the disintegration of glucose which we get from food molecules and oxygen.

The reactants of cellular respiration are oxygen and glucose while the products are carbon dioxide, water, and energy in the form of ATP.

The part of food products that power the process of cellular respiration must be highly rich in glucose in order to deliver as much as energy can possible.

So, the breading on the shrimp provides the most energy in the form of glucose to help power cellular respiration.

Therefore, the breading on the shrimp is a part of fried shrimp that provides the most energy in the form of glucose.

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Passing a microorganism to another person through touch is called.

Answers

Direct Contact Infection

Direct contact are touching, kissing, contact with oral secretions, or contact with body lesions.

Hope it helps (⌒▽⌒)(⌒▽⌒)

K12
Tropical storms are strengthened by heat and moisture
True
False

Answers

Answer:true

Explanation: I took the test on k12 xx

Tropical storms are strengthened by heat and moisture. So, the given statement is True.

What are Tropical storms?

A tropical cyclone is defined as a rapidly rotating storm system characterized by a low pressure center, a closed low-level atmospheric circulation, strong winds and a spiral arrangement of thunderstorms that produce heavy rain and thunderstorms.

Tropical cyclones form around the equator at 5° - 30° but this also varies depending on where in the world they form. Tropical cyclones initially move west due to easterly winds and slightly poleward. Tropical storm is organized center of low pressure that originates over warm tropical oceans.

Thus, Tropical storms are strengthened by heat and moisture. So, the given statement is True.

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If a sperm cell contains 8 chromosomes, it comes from an animal that has ______ chromosomes.

Answers

Answer:

If a sperm cell contains 8 chromosomes, it comes from an animal that has 16  chromosomes.

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