An example from the text contrasts two forests, each with 10 species and a total of 50 trees. The first
forest has 39 of the 50 trees representing the dominant species. The second forest has 2 of each of the
10 different species. What conclusion can be drawn regarding these two forests?
a. The amount of animal species in each forest would be the same.
b. The first forest is more diverse than the second.
c. The first forest must have had some human interference.
d. The second forest is more diverse than the second.
e. The second forest must have had some human interference.
D
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Which of the following is NOT true of hemoglobin?
A. It is a large protein with four subunits. B. It is packaged into red blood cells. C. It binds four O2 molecules cooperatively. D. O2 is bound to heme group containing iron atom. E. It contains an oxygen binding group that includes a copper atom.
Nerve impulses coming into the spinal cord enter via
a. intervertebral disks. b. neuroglia. c. the dorsal roots. d. Broca’s area. e. ventral roots.
Which colour are hummingbirds attracted to?
a. yellow b. blue c. red d. green
A strain of Neisseria gonorrhea has a mutation which has caused it to lose the ability to produce fimbriae and become less virulent as a consequence. What function has this pathogen lost?
A) the ability to adhere to cells of the body B) the ability to move from one location in the body to another C) the ability to produce an endotoxin D) the ability to establish a latent infection E) the ability to prevent phagocytes killing it