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Burka [1]
3 years ago
9

3. Humans, rabbits, and zebras all have an appendix, an extra piece in their digestive system, although in human is much smaller

.
A. What type of evidence of evolution is this? ______________________
B. Why is this evidence of evolution
Biology
1 answer:
dedylja [7]3 years ago
4 0

Answer:

i-

Explanation:

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The Seven Sisters are seven stars located more than 400 light-years away in the Taurus constellation and they can be seen here w
Ghella [55]

Answer:

Option B

Explanation:

The seven stars are bigger in size as compared to the size of the sun. Also, these stars are more luminous as compared to sun. However, these stars appear small in size in comparison to sun because of their distance from earth. The larger is the distance, the dimmer is the star. Sun is at a distance of 0.0000158 Light years from Earth while the nearest star of the seven sister i.e Alpha Centauri is 4.37 light years away.

Hence, option B is correct

8 0
3 years ago
On rare occasions, mutations can be beneficial to an organism. <br> a. True<br> b. False
gtnhenbr [62]
The answer is true idk how to explain its just true sometimes but its super rare
5 0
3 years ago
in mammals, an increase in the temperature of the preoptic area of the hypothalamus activates physiological mechanisms for heat
serious [3.7K]

True. In mammals, an increase in the temperature of the preoptic area of the hypothalamus activates physiological mechanisms for heat dissipation including vasodilation.

<h3>What is vasodilation?</h3>

Vasodilation, as it is known in medicine, occurs when blood vessels in your body open up, enabling more blood to flow through them and resulting in a reduction in blood pressure. Without your knowledge, your body goes through a routine procedure like this. It can also be brought on by the foods and beverages you consume as well as the drugs you take. Vasodilation may also be a sign of a particular illness.

The two of the many functions that your blood serves in the body:

  • Carrying oxygen and nutrients
  • Aiding in temperature regulation in your body.

Your body's blood arteries are more complex than simple tubes that remain constant in size. Your blood arteries include muscle as well, and that muscle regulates how wide or narrow they are at any particular time. Vasodilation occurs when blood vessels enlarge. Vasoconstriction is the opposite process, which occurs when blood vessels narrow and contract.

To learn more about vasodilation visit:

brainly.com/question/10017075

#SPJ4

8 0
1 year ago
Does the number of particles change as a substance changes it’s state?
JulsSmile [24]

Answer:

No

Explanation:

Only what state it is in, soild, liquid or gas. Particals never change duering this.

6 0
2 years ago
Which of the following substances would have the most trouble crossing a biological membrane by diffusing through the lipid bila
tangare [24]
<h3><u>Answer</u>;</h3>

d. Na+

<h3><u>Explanation</u>;</h3>
  • The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others.
  • <em><u>Small molecules that are non-polar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.</u></em>
  • Charged ions  such as N+ and K+ Cannot permeate the cell membrane for the since uncharged molecules repel uncharged molecules present in the membrane structure.

5 0
3 years ago
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