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dybincka [34]
3 years ago
15

Why is it necessary for animals to have a circulatory system?

Biology
1 answer:
Elden [556K]3 years ago
6 0

Answer:

to breathe

Explanation:

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Assume that while on a biology field trip, you find an unusual insect that you and several other biologists are unable to identi
Basile [38]

Answer:

To describe a new specie, it has to be carefully examined in order to determinate that it doesn´t belong to an another specie already described.

Once it has been determinate the novelty of the specie, the researchers write a formal description of it, takes pictures and name it with the new scientific name. Then, the researchers refer it to a scientific magazine.   The editor of the publication will comunicate the new discovery to an experts in that gender.   If the experts agreed, and the publication accept the study, the specimen converts to a new specie.   The process is long and could take years betwen the inicial discovery and the formal acceptation of the new specie

Explanation:

4 0
3 years ago
Consider a single bacterium starting out under ideal conditions. Its generation time is 20 minutes. How many bacteria will there
Colt1911 [192]
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3 years ago
How are proteins regulated after translation? active proteins can be inactivated by post‑translational modification existing mRN
Sonja [21]

Answer:

inactive proteins can be activated by phosphorylation

Explanation:

Proteins are regulated after translation by the non-covalent binding of small molecules. These molecules include amino acids or nucleotides. A change in the conformation and thus, the activity of the protein is usually achieved when this occurs.

Proteins could also be regulated by phosphorylation which is the addition of phosphate groups of specific amino acids on the protein.

3 0
3 years ago
What store color pigments
Rina8888 [55]
Chromoplast(Plastid) is the answer you are very welcome
6 0
3 years ago
You've just read a research project titled: "Prolonged cell phone use causes brain tumors."
kvasek [131]

Answer:

<em>The correct option is B) number of patients with brain tumors</em>

Explanation:

In a scientific experiment, an independent variable is a variable which is being changed by the scientist or changes naturally. The effect of the independent variable is studied on another variable which is termed as the dependent variable. Hence, the dependent variable can be described as the variable which is under study in a scientific experiment.

In the following scenario, as the effect of prolonged cell phones is being tested on causing brain tumors hence, the number of patients with brain tumors will be the dependent variable.

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3 years ago
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