When dopamine kicks in, we begin the physical transition into adulthood and are forced to see ourselves differently-forced to accept a newer version of ourselves. A. True. False. H

2. if scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to? a. roundworms b. annelids c. mollusks d. flatworms

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.