47) While on the Beagle, Darwin was influenced by a book by Charles Lyell that s

Question

47) While on the Beagle, Darwin was influenced by a book by Charles Lyell that suggested that Earth 47) lpted by geologic processes that and scul today. B) old... no longer occur was A) young... no longer occur C) young... continue d... conti 48) Scientists hypothesize that disrupting ourcommunities may increase our susceptibility to 48) infectious diseases, predispose us to certain cancers, and contribute to conditions such as asthma and other allergies, irritable bowel syndrome, Crohn's disease, and autism. A) protist B) exotoxin C) pathogen D) microbial 49) Who was the other scientist that came up with the theory of evolution independently of (but later49) than) Darwin? A) Rachel Carson C) George Springer B) Russell Wallace D) Rosalind Franklin the wing of a butterfly 50) 50) The wing of a penguin is C) superior to B) analogous to D) homologous to A) structurally identical to 51) A reproductive barrier that prevents individuals from closely related species from interbreeding is 51) an example of A) geographic isolation of populations C) sympatric speciation B) a prezygotic barrier D) allopatric speciation 52) Which of the following is a population? 52) A) the termites infesting your house B) all of the termites that have ever lived C) the termites infesting your house along with the microorganisms living in their guts D) all organisms living in your house

Explanation / Answer

Answer:

47). d. Old....continue

48). D. Microbial

49). B. Russel wallace

Explanation:

Alfred Russel Wallace independently conceived of a natural, even observable, way for life to change: a process Darwin called natural selection.

50). B. Analogous

Explanation: The wings of a bird and the wings of a butterfly are analogous and show morphological convergence.

51). B. a prezygotic barrier

Explanation:

A prezygotic barrier is a reproductive barrier that impedes mating between species or hinders fertilization of eggs if members of different species attempt to mate.

52). A. The termites infestig your house

Explanation:

A population is all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding.

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