The answer is serotonin. Serotonin is a significant chemical neurotransmitter in the human body. Serotonin that is used in the brain must be made within it. It is believed that serotonin can touch mood and social performance, hunger and ingestion, slumber, reminiscence and sensual desire and purpose.
The answer is A.True but they are not the only ways in which this can occur.
Answer:
It is an answer to a scientific question and is based mostly on research.
Explanation:
Mendel five part hypothesis was also known as the law of segregation. This law explain the how traits are inherited in living organisms. Mendel's theory discovered that there are two alleles for a single gene and that one of these alleles is inherited from each parent, which forms the basis of the trait in the progeny(offspring).
Mendel’s hypothesis was considered true after various experiments and analysis and also answer the question of how the different traits are passed on from parent to progeny. This validates it being an answer to a scientific question and it being based mostly on research.
by experimenting the layers of the earth
Endocytosis even though there are two types of this