18. Convergent evolution occurs when two species living in A. the same area are

Question

18. Convergent evolution occurs when two species living in A. the same area are competing for the same resource thus causing one to evolve away from the other. B. different areas become reestablished and are able to reproduce. C different areas evolve similarities through natural selection acting on those charactern D. the same area become reproductively isolated 19. Evolution does not violate the second law of thermodynamics because A. evolution is a random process; it does not require an input of energy B. Earth is not a closed system; it constantly receives an input of energy from the sun C. the disorder generated by extinction balances the order created by evolution D. living organisms are not subject to the second law 20. Which of the following is the best reason that the origin of species according to creation science should not be included in the curriculum of biology courses? A. It has been superseded by more modern theories. B. It has proven to be false. C. It constitutes the teaching of religion D. It is contrary to the beliefs of most scientists. E. It is not a scientifically testable theory 21. If populations within the same area split into species, the process is known as A. reproductive speciation. B. sympatric speciation C. racial speciation. D. allopatric speciation. E. ecotypical speciation. 22. Prezygotic mechanisms lead to reproductive isolation by preventing the formation of A. fertile sperm or pollen cells. B. hybrid zygotes C. mating pairs. D. somatic cells. E. fertile eggs 23. An example of temporal isolation would be A. one plant species is pollinated by bees and a second plant species is pollinated by moths B. two plant species have incompatible gametes. C. one plant species blooms in June-July and a second plant species blooms in August-September. D. two plant species live on the same mountainside but one lives on rocky outcrops and the other in open meadows 24. Lake Victoria is famous for its variety of cichlid fishes. In fact, they offer the most diverse assembly of vertebrates presently known to science. One trait that scientists have focused on as one possible reason for their adaptability is A. a second set of scales that lie beneath the top outermost scales. B. gill arches that are not covered by an operculum, which prevents hiding places for gill parasites. C. ability to change color in relationship to their environment. D. digestive tracts that are able to process most substrates, which has eliminated the need for feeding specialization. E. a second set of jaws in their throats.

Explanation / Answer

Q-18

Convergent evolution occur when 2 different species living in same area competing for same resources

Q19

Evolution does not violate 2nd law due to increase in entropy the disorder is created by extinction

Q 20

Origin of species is not a tested theory by scientific means

Q 21

If population in same area splits it is know as sympatric speciation

Q 22

Prezygotic mechanism prevents fertilization of eggs

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