Which of the following statement is/are incorrect? a) acetylcholine may be excitatory or inhibitory depending upon the type of receptor it binds to. b) glutamate and aspartate have excitatory effects. c) gamma amino butyric acid and glycine are excitatory neurotransmitters. d) atp is an excitatory neurotransmitter. e) biogenic amines may be excitatory or inhibitory depending upon the type of metabotropic receptor that they bind to.

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.

In the first stage of the nuclear fuel cycle the spent fuel must be transported, processed, and disposed of properly. true or false

Match the following terms and definitions. the transformation of a larva to an adult; occurs only in animals having great differences in form between the larva and adult pupa 2. type of mammal that lays eggs monotreme nymph the part of certain insect life cycles in which the young animal has no wings or reproductive organs the developmental stage between larva and adult in insects undergoing metamorphosis metamorphosis 5. the male gonad which produces sperm testes