The various characteristics of organisms that result from their genetic makeup are collectively referred to as an organism's ________
Fill in the blank(s) with correct word
phenotype
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________ are responsible for the transmission of a signal between two adjacent nerve cells.
Fill in the blank(s) with the appropriate word(s).
The three types of muscle tissue are cardiac, skeletal, and ___________
Fill in the blank(s) with the appropriate word(s)
If you applied a toxin that blocked non-voltage-gated potassium channels (i.e., the potassium "leak channels") in a resting neuron, it would cause the membrane potential to be
A. less negative. B. more negative. C. No change would be observed.
The primary advantage of gills versus the body surface for gas exchange in aquatic animals is that ________.
A. gills are located near the mouth B. gills decrease resistance to movement C. all gills contain a countercurrent exchange system D. gills have a much greater diffusion surface area