Which organisms are able to control their body temperatures?
A. Whales
B. Sea birds, whales, and seals
C. Sea birds
D. Whales and seals
E. Seals
Answer: B
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Two species of frogs do not interbreed because one species breeds in March and the other species breeds in May. This is an example of
A) allopatric speciation. B) sympatric speciation. C) a prezygotic reproductive barrier. D) a postzygotic reproductive barrier.
Discuss the paleogeography of the Early Paleozoic. How did this paleogeography differ from present-day geography? What will be an ideal response?
The most common type of agriculture in developing countries where markets are still evolving is plantation agriculture
Indicate whether the statement is true or false
In order to institute an integrated pest management program, it is necessary to
A. Burn all fields to eliminate biological elements B. Use large amount of space C. Have large amount of money D. Understand local plants and animals E. Have many different kinds of crops