Some aquatic communities are defined by physical features of the abiotic environment rather than by the dominant organisms
Indicate whether the statement is true or false
TRUE
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The process whereby repeated, short stimuli provided to a hippocampal neuron have the effect of strengthening the synapse it makes with other neurons is specifically referred to as
A. long-term potentiation. B. short-term potentiation. C. neurotransmission. D. synaptic reuptake. E. None of these choices are correct.
What mechanisms do ectothermic animals have for thermoregulation? Check all that apply.
_____ countercurrent heat exchange _____ changing the rate of heat production by muscular activity _____ changing the rate of heat loss by vasodilation and vasoconstriction _____ relocating to warm areas when too cold, or to cooler areas when too hot _____ insulation in the form of feathers or fur
The use of sulfate as a terminal electron acceptor by Desulfovibrio is an example of assimilatory sulfate reduction.
Answer the following statement true (T) or false (F)
Which of the following is NOT involved in the formation of blood clots?
a. platelt congregation at the site of rupture of a blood vessel b. release of clotting factors from platelets c. production of fibrin, a protein d. formation of fibrin-red blood cell complexes that circulate in the blood and are too large to move though ruptured blood vessel walls