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.
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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.
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
Natural selection selects for or against certain
A) alleles. B) phenotypes. C) populations. D) genotypes. E) gene pools.
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).