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earnstyle [38]
3 years ago
12

How do you think vestigial structures came about?

Biology
1 answer:
zloy xaker [14]3 years ago
6 0

Answer and Explanation:

Vestigial structures are those that have in the course of time ceased to be functional and therefore have become reduced in size or are rudimentary. Example is the appendix which  in humans has no digestive function, a vestigial tail present in humans in form of much-reduced coccyx.

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Which of these has a warning effect on earth
g100num [7]

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ecosystems through temperature rises,

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drought,

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3 0
3 years ago
Some species in the weasel family, such as skunks, protect themselves by spraying a foul-smelling musk oil when threatened. Why
9966 [12]
The correct answer is B.
5 0
3 years ago
The perivascular feet of the ______ help create a blood-brain barrier. multiple choice question.
vovangra [49]

The perivascular feet of the <u>endothelial cells</u> help create a blood-brain barrier.

<h3>What are endothelial cells?</h3>

Endothelial cells can be defined as those type of cells found in the inside lining of blood vessels, lymph vessels, and the heart.

Interestingly, the major function of the edothelial cells is that they release substances that control vascular relaxation and contraction as well as enzymes that control blood clotting, immune function and platelet (a colorless substance in the blood) adhesion.

So therefore, the perivascular feet of the endothelial cells help create a blood-brain barrier.

Learn more about endothelial cells:

brainly.com/question/7448518

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8 0
2 years ago
PLEASE HURRY PLEASE
stiks02 [169]

Answer:

Burning trash.

Explanation:

When we burn trash, it creates small particles of ashes. This small particle of ashes become mix up with the air. Air can blow these particles to the river or any other water resources, which contaminate the water and make a negative impact.

Raising livestock also has some negative impact on contaminated water and makes a negative impact, but burning trash makes the more negative effect more.

4 0
4 years ago
What's the difference between purebred $ hybrid?
Lemur [1.5K]

Answer:

In the simplest possible terms, purebreds are the offspring that result from mating between genetically similar parents while hybrids are the offspring that are the result of mating between two genetically dissimilar parents

Explanation:

6 0
3 years ago
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