What is the term used to describe the ability to maintain a constant body temperature?
a. Homeothermic
b. Heterothermic
c. Endothermic
d. Exothermic
a
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Macrophages and dendritic cells are
A. T cells. B. B cells. C. antigen-presenting cells. D. antibody-producing cells.
If you wanted to block transmission of nerve impulses between successive neurons, you would design a drug to impair
A. axons. B. dendrites. C. synapses. D. trigger zones. E. nodes of Ranvier.
Synapse in which neurotransmitters decrease the chance of an action potential on the postsynaptic cell. _____ 2) Synapse in which neurotransmitters allow sodium to enter the postsynaptic cell. _____ 3) A specific type of neuron that conducts information toward the brain and spinal cord from a sensory receptor. _____ 4) The junction between a neuron and another cell. _____ 5) The short branching projections of a neuron, which provide surface area for sending and receiving signals from other cells. _____
A) Inhibitory synapse B) Synapse C) Sensory neuron D) Synaptic knobs E) Dendrite F) Axon G) Motor neuron H) Interneurons I) Ion channels J) Excitatory synapse
What are the charophytes?
A) Algae that live symbiotically with fungi B) An extinct group of protists that may have given rise to the fungi C) Smallest living plants D) Closest living ancestors of the first plants