Answer:
rugae or gastric folds
Explanation:
not totally sure but i think so
A nucleus consists of a nuclear membrane that surrounds it, within the membrane there is a nucleolus which can be compared metaphorically to the yolk of an egg in appearance. The nucleolus is surrounded by nucleoplasm which is quite like the cytoplasm.
Answer:
<em><u>Nutrients help break down food to give organisms energy</u></em>
Explanation:
Nutrients are chemical substances found in every living thing on Earth. They are<em> necessary</em> to the lives of people, plants, animals, and all other organisms. <u><em>Nutrients help break down food to give organisms energy</em></u>. The human body can also synthesize some nutrients, such as <em>amino acids</em>.
Alveoli are found in lungs and exchamge O2 and Co2 !!
so answer is last one !!
It allows scientists to explore new explanations for observations.
