_______ diversity is lost when crops, pastures, and suburban sprawl encroach on natural habitats such as prairies and tropical rainforests.
a. Chemical
b. Genetic
c. Ecosystem
d. Physical
c. Ecosystem
Ecosystem diversity is lost when crops, pastures, and suburban sprawl encroach on natural habitats such as prairies and tropical rainforests.
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When some members of a group of organisms adapt to a new general way of life, they are said to be
entering
a. a new niche b. an adaptive zone c. an adaptive radiation d. a new habitat e. a period of punctuated equilibrium
A buried skeletal find has the foramen magnum near but not at the rear of the skull; this indicates the skeletal remains may be those of a
A. human. B. dog or a gorilla. C. gorilla. D. a lesser ape, like a gibbon. E. gorilla or a human.
A population of wolf spiders exemplifies a
__________ population distribution. a. clumped b. random c. uniform d. constant e. homogeneous
What maintains the resting membrane potential?
a. Na+-K+ pumps b. leaky sodium channels c. gated sodium channels d. leaky potassium channels e. gated potassium channels