Soil Consists of:
a. rock particles of various sizes
b. minerals
c. microorganisms
d. organic matter from dead organisms
e. All of the above
Ans: e. All of the above
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All multicellular organisms have a nervous system
A. true B. false
Which statement does NOT distinguish Darwin’s theory of natural selection from earlier descriptions of biological
diversity and adaptive traits?
a. Biological diversity has purely physical, rather than spiritual, origins. b. Evolutionary change occurs in groups of organisms, rather than in individuals. c. Spiritual explanations account for the origin but not the diversification of individuals. d. Some organisms function better than others in a particular environment. e. Evolution is a multistage process and natural selection eliminates unsuccessful variations.
When mast cells degranulate and release histamine, which of the following events may occur?
A. constriction of small blood vessels B. bronchial spasms C. increased mucus production D. both constriction of small blood vessels and bronchial spasms E. both bronchial spasms and increased mucus production
Among the areas of the female genital tract, which of the following is NOT colonized by Neisseria gonorrhoeae?
A. the vagina B. the cervix C. the uterus D. the Fallopian tubes E. the pelvic organs