Because whales breathe via lungs, have a little hair when born, and nurse their young, these

__________ characters allow us to classify them as mammals.
a. plesiomorphic
b. homoplastic
c. cladistic
d. polyphyletic
e. derived


A

Biology & Microbiology

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A somatic mutation

A) occurs only in microbes. B) affects a particular subset of cells. C) affects all cells of an individual. D) is expressed only in embryos.

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Genetic engineering has produced which of the

following animals? a. goats with heart-healthy milk b. low-fat pigs c. extra hefty sheep d. cows resistant to mad cow disease e. all of these

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The optimal foraging theory states that when animals forage, they maximize their ____ per unit of foraging time

a. migration rates b. energy intake c. ability to capture prey d. interaction with predators e. ability to hide from predators

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Brain cortices are important for the execution of a particular task within a specific lobe (i.e. the primary motor cortex initiates movement within the frontal lobe). However, brain areas are necessary for integrating information from different lobes. Which brain area is most responsible for the organization of movement before it is initiated?

a. Premotor area b. Supplementary motor area c. Sensory association area d. Primary somatosensory cortex

Biology & Microbiology