As you move south from the equator to the south pole, animal and plant diversity

A) increase.
B) decrease.
C) are not affected by latitudinal changes


Ans: B) decrease.

Biology & Microbiology

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The coagulation system serves to:

a. increase blood flow to the area of infec-tion and can also effectively wall off the infection through the production of barrier substances. b. attract and enhance the activities of pha-gocytes. c. provide substances secreted by one type of cell, which have substantial effects on the antiinfective activities of other cells. d. ingest and destroy microorganisms.

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Which of the following tissues/organs is NOT a member of the endocrine system?

A) kidney B) salivary gland C) adrenal gland D) thyroid gland E) stomach

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Natural selection selects for or against certain

A) alleles. B) phenotypes. C) populations. D) genotypes. E) gene pools.

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A dormant, resistant stage produced by some bacteria is a(n) (endospore/spore/vegetative cell).

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology