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spayn [35]
2 years ago
5

HURRY please!!

Biology
1 answer:
GREYUIT [131]2 years ago
4 0

Answer:

Before the industrial revolution, there wasn't much pollution/soot, and the moths were mostly light colored. When humans started using machines for everything, soot coated the trees and the light colored moths were easier for birds (predators) to see. The moths became mostly dark colored, because it was better camoflauge.

Now that we have environmental restrictions, there isn't as much soot everywhere. Now moths are mostly light colored again, because the dark moths are easier to see.

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What is one reason why the classification of protists in one kingdom is difficult?
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B.  Protists more closely resemble members of other eukaryotic kingdoms than they do other protists.

Explanation:

It is difficult for scientists to classify protists into one kingdom because they closely resemble member of other eukaryotic kingdoms than they do other protists.

The protists have a wide variations among themselves that makes them very difficult to classify.

  • Protists have a wide-range of diversity within them and they flaunt every rule used to classify them.
  • Protists have also shown characteristics of different kingdoms between them.

learn more:

Kingdom of life brainly.com/question/5186929

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4 years ago
Why do scientists use the International System of Units (SI)?
saw5 [17]

Answer:

It should be answer C.

Explanation:

The main reason to create SI units was to be able to communicate everyone's results internationally, and because we all you different units, the SI units fixed that.

Hope this helped.

5 0
3 years ago
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What is the mechanism of synaptic transmission?
LenKa [72]

Answer:

Synaptic transmission consists of three steps: (1) intracellular vesicles loaded with neurotransmitters are targeted to the presynaptic membrane; (2) an action potential triggers exocytosis to release the neurotransmitters to the synaptic cleft between two neurons

hope this helps !!!!

5 0
3 years ago
In a chemical analysis of a sample of animal tissue, which element would most likely be found in the smallest quantity?
andreyandreev [35.5K]

Answer:

Iodine

Explanation:

Iodine is needed by animals because the body's metabolic rate is controlled by the action of an iodine hormone, called thyroxine, which is secreted by the thyroid gland in the neck.

If the animal fails to supply enough iodine through food to be able to make a normal amount of this compound, then the thyroid gland enlarges or expands trying to create enough, resulting in a common type of goiter.

8 0
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Describe the purposes and usage of nucleic acids and their role in genetic mutations?
belka [17]

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Genetics take a long time to mutate.

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