Most water that enters the gut is absorbed across the lining of the _____
a. stomach c. large intestine
b. small intestine d. esophagus
B
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Select the true statements describing why cladistics may not always be the best method for reconstructing phylogenies based on data from the DNA genome.
_____ The rate of evolution of the DNA genome is rapid. _____ The assumptions of the principle of parsimony are not always met. _____ Homoplasy often dominates the data sets. _____ The number of character states for DNA is large.
All of the genes in a population comprise its
A) genotype. B) gene pool. C) gene reservoir. D) genome.
Two EPSPs combine to drive a cell to threshold potential. This is an example of ____
a. neuromodulation b. intersignaling c. neurotransmitter release d. synaptic inhibition e. summation
Chemoreceptors are involved with which two senses?
a. touch and olfaction b. hearing and olfaction c. gustation and touch d. gustation and vision e. gustation and olfaction