Which is true of Mycobacteria?
A. they cause leprosy
B. they cause tuberculosis
C. they are acid-fast
D. all of the above
Ans: D. all of the above
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Diagram the basic steps of a stretch reflex arc.
What will be an ideal response?
Why do species with large body sizes typically have lower population densities?
a. each large organism consumes more available resources b. there are not enough individuals to grow the population c. genetic diversity is low d. small organisms have more potential mates e. large organisms do not like living near one another
If a child belongs to blood type O, he or she
could NOT have been produced by which set of parents?
a. type A mother and type B father b. type A mother and type O father c. type AB mother and type O father d. type O mother and type O father e. type AB mother and type B father
Ecosystems may lose nitrogen through
a. denitrification. b. nitrification. c. nitrogen fixation. d. all of these. e. none of these