Which of the following is NOT a difficulty with the biological species concept?

a) asexual species
b) ring species
c) inbreeding species
d) fossil species
e) hybridizing species


Ans: c) inbreeding species

Biology & Microbiology

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Which type of hypersensitivity is IgE-mediated?

A. Type III B. Type II C. Type I D. Type IV

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Answer the question using the accompanying figure. Of the fragments labeled A-D, which is closest to the negative

electrode?

a. A b. B c. C d. D e. they are all the same distance from the negative electrode

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Nondisjunction can occur during _____ of meiosis

a. anaphase I b. telophase I c. anaphase II d. [anaphase I] and [anaphase II]

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As succession proceeds, what occurs with animals living in the habitat?

A) Animals adapt to the new vegetation. B) Animals leave as their habitat disappears. C) New animal species evolve in response to vegetation. D) Animal species diversity continually decreases.

Biology & Microbiology