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lesantik [10]
3 years ago
13

CAN SOMEONE HELP ME PLEASE?

Biology
1 answer:
Over [174]3 years ago
8 0

It is the human influence rather than natural influence, as the other definition I found is it's basically humans causing pollution in the environment. I hope this helps!

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_________ are especially important because they are involved in a variety of processes, such as cell signaling, immune response,
eimsori [14]
<span>Proteins is the answer. There are sequence of functions of a protein depends on its shape which is determined by the protein's specific sequence of amino acids. . Proteins are very important because they are confusing in a variety of processes, such as cell signalling, immune response, and enzyme activity.</span>
4 0
3 years ago
Which of the following correctly explains the difference between mitosis and meiosis?
Nookie1986 [14]

Answer:

Mitosis is the reproduction of tissue cells. While Meiosis is the reproduction of one diploid cell into 4 haploid cells.

Explanation:

6 0
2 years ago
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Acid rain does which of the following?
lesya [120]
The best answer is option D. Acid rain is simply rainfall that has been rendered acidic due to water vapor reacting with nitrogen oxide ad sulphur dioxide very high up in the atmosphere. Acid rain is not only a threat to the ecosystem and environment, but also seriously damages buildings and sculptures. Marble and limestone are especially vulnerable to acid rain. This is because the two building or construction materials contain calcite which is easily dissolved by acid. Concrete surfaces and paint finishes are also seriously damaged by acid rain.
6 0
3 years ago
1. In the 1820s what did scientists think all dinosaurs really were
Leona [35]

Answer:

yes dinosaurs were there

Explanation:

some fossils and skeleton models were found as proof

8 0
3 years ago
Which of the following are among the most common second messengers?
frosja888 [35]

Answer:

The correct answer would be calcium ion and cAMP.

Secondary messengers refers to the intracellular signaling molecules which pass the signals from the receptors located on the surface of the cell to the target molecule present within the cell.

The secondary messengers can be classified into three major class:

  1. Cyclic nucleotide for example cAMP (cyclic adenosine monophosphate), cGMP (cyclic guanosine monophosphate)
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  3. Calcium ions (Ca⁺⁺)  

Hence, from the given options, calcium ion and cAMP would make the correct choice.

3 0
3 years ago
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