Why are bacteria needed in the nitrogen cycle?

Other living things cannot use atmospheric nitrogen.
Other living things cannot use the nitrogen in plants.
Bacteria are the main nitrogen reservoir.
Bacteria are the main nitrogen transporters.

Answer:

Empirical evidence is information acquired by observation or experimentation.

Explanation:

I hope it will help you

Answer:

A does the object contain ice

Explanation:

The BEST question that would confirm that the object is a comet is "Does the object contain ice?" Hence the correct option is A.

Comets are small, icy celestial bodies that originate from the Kuiper Belt and the Oort Cloud. As they approach the Sun, they heat up and release gas and dust in the form of a coma and a tail, which can be observed from Earth. Therefore, if the object contains ice, it is most likely a comet.

Meteoroids, on the other hand, are smaller rocks that travel through space, and asteroids are larger rocks that orbit the Sun between Mars and Jupiter. Neither meteoroids nor asteroids typically contain ice.

As for the other options, whether the object contains metals or how big it is does not provide enough information to determine whether it is a comet, asteroid, or meteoroid. And while the location of the object may provide some clues about its origin, it is not a definitive factor in determining whether it is a comet.

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Answer:

A. All answers are correct

Answer:

No, they are not. The concept of human races appears to be solidly grounded in present-day biology and our evolutionary history. But if you asked that conference of geneticists to give you a genetic definition of race, they wouldn’t be able to do it. Human races are not natural genetic groups; they are socially constructed categories. Genes certainly reflect geography, but unlike geography, human genetic differences don't fall along obvious natural boundaries that might define races.

Answer:

let me see what it is

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Answer:

ok

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Answer:

its the second answer

Explanation:

Answer:

metal fork is the answer

Answer:

the metal fork is the answer !!!!

Explanation:

Here -

1. wood comes from a tree that is living.

2. chicken breast is from a chicken that is living.

3. slice tomatoes are from plants which plants are a living thing.

Answer:

The relationship between the fossil fuel and carbon is that once the fossil fuel is used, it releases carbon dioxide into the air.This proves that fossil fuels have a relationship to carbon dioxide.

A. People can Change the way that the genes flow

Answer:just look at the pic brothas

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Answer:

A

Explanation:

Mark as brainllest

Answer:

periwinkle is used for “brain health” (increasing blood circulation in the brain, supporting brain metabolism, increasing mental productivity of leef

Answer: I think it is c

Explanation:

Answer:

The answer would be c

Explanation:

ACTCAAGAC

TGAGTTCAG

they compliment one another

Answer: c. TGAGTTCTG

Explanation: Adenine only bonds with thymine and cytosine only bonds with guanine

Natural Selection and Genetic Drift

evolution refers to the change in the characteristics of a species over several generations and relies on the process of natural selection.

there are four types of mechanism of evolution:

the mechanism of evolution could involved in the evolution of wolves and dogs are:

natural selection and genetic drift

natural selection favored wolves that were bold and friendly. bold and aggressive wolves would be killed and hence unable to breed. this allowed bold and friendly dogs to breed, which was key to eventual evolution into dogs.    

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Answer: the answer is surface runoff, you’re welcome

Explanation:

I just took this test and got a 100

Answer: Invertebrate

Explanation: Invertebrate do not have a spine.

Answer:

am pretty sure it's diatom

Answer: I think it is c

Explanation: if they make artificial coral reefs that would provide homes for the fish and aquatic animals. This would cause biodiversity to increase.

Answer:

Drawbacks: Veterinary school is long and extensive, some surgeries can take hours, sometimes you may get an uncooperative animal, you might have to deal with putting an animal down, which can be hard. You also might be scared for live with graphic images, lol.

Benefits: Vets get paid a lot, they help animals, they help animals live the best life, people are VERY appreciative of the work they do for animals, they are always around animals, so they may see the cutest puppies!

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Answer:

Grass and tree

A producer is a living thing that makes its own food. All food chains begin with producers.

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Answer:

A Horizon

Explanation:

So C :)

Answer:

b

Explanation:

Answer:

Silent mutation: Some mutations that change DNA bases do not have any effect on the sequence of amino acids in the protein. These mutations are called silent mutations and they do not affect the structure or function of the protein because there is no effect on the amino acid sequence.

Answer:  1. messenger RNA (mRNA). 2. rna, gene, protein. brainliest?

Explanation:

The end result of transcription is mRNA, and the correct sequence of molecules in protein synthesis is Gene → Transcription (RNA) → mRNA → Protein.

Transcription is the process in which a segment of DNA is used as a template to synthesize a complementary mRNA molecule. It occurs in the nucleus of eukaryotic cells and in the cytoplasm of prokaryotic cells. During transcription, the DNA molecule unwinds, and an enzyme called RNA polymerase binds to a specific region of the DNA known as the promoter. The RNA polymerase then moves along the DNA strand, synthesizing a complementary mRNA molecule using the base pairing rules (A with U, G with C).

The end result of transcription is the production of mRNA. mRNA is a single-stranded molecule that carries the genetic information from the DNA to the ribosomes in the cytoplasm. It serves as a template for translation, where the information encoded in the mRNA is used to synthesize proteins.

Regarding the sequence of molecules in protein synthesis, the correct order is as follows:

Therefore, the correct sequence of molecules in protein synthesis is Gene → Transcription (RNA) → mRNA → Protein.

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Answer:

Explanation:

The gas exchange of plants is part of the cellular respiration process, where the plants both remove and release gases into the atmosphere. This exchange happens through structures present in the leaves of plants, which are called stomata. Stomata function as doors, if they are closed it is impossible for the plant to promote gas exchange, but if they are open. Transpiration occurs with the release of water vapor through open stomata. It is in this water vapor that the plant releases oxygen into the atmosphere.

The opening and closing of the stoma is a highly regulated process, because opening the stoma makes the plant lose water. In this case, the guard cells are responsible for opening and closing the stoma whenever necessary and the plant has good water levels.

Answer:

Blood is pushed through vessles

Explanation:

all the other answers are... weird.

Answer:

C

Explanation:

Heart needs exercise and at all times if your heart doesn't get rest you die so it's the most important part

Answer:

Herbicides kill or suppress plants by interfering with essential plant processes such as photosynthesis. All of the interactions between an herbicide and a plant from application to the final effect are referred to as the mode of action.

Explanation:

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