The answer is:C
Explaination
Answer by Mimiwhatsup: A one step process where one atom of helium is generated from four atoms of hydrogen.
Why: "Hydrogen fusion (nuclear fusion of four protons to form a helium-4 nucleus) is the dominant process that generates energy in the cores of main-sequence stars. It is also called "hydrogen burning", which should not be confused with the chemical combustion of hydrogen in an oxidizing atmosphere." (Wikipedia)
Answer:
Consistently changes the subject when the topic of the fetus/newborn is raised.
Explanation:
This is the decision of the couple whether they want a child or not and can discuss about the family planning as well. Different psychological aspects acn explain this matter.
The expectant father is not mentally prepared for the child. He might refuse the talks and stay away from the communication that are related to the new born child. This must be properly assessed and important to understand the feeling of the expectant father.
Thus, the answer is consistently changes the subject when the topic of the fetus/newborn is raised.
Answer:
A. because immune, nervous, and muscle system cells require proteins for structure and regulation.
Answer:
Hibernating in winter
Explanation:
A behavioral adaptation is something an animal does usually in response to some type of external stimulus in order to survive.