Many species of birds form large flocks. What dispersion pattern describes this behavior?
A. random
B. clumped
C. social
D. uniform
E. rapid
Answer: B
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Two species of Gelsemium spp., a flowering vine plant, share the same habitat and have similar insect pollinators. However, pollination occurs for Gelsemium semperviren from mid-January to late March, and for Gelsemium rankinii from late March to mid-April. This represents
A. gametic isolation. B. a process analogous to behavioral isolation in animals. C. temporal isolation. D. ecological isolation. E. mechanical isolation.
If a small vessel is torn, which component of
the blood will temporarily fill the breach?
a. plasma proteins b. leukocytes c. platelets d. erythrocytes e. all of these
What can be detected by using SIM medium? (Check all that apply.)
a. motility
b. tryptophan degradation
c. mannitol fermentation
d. inositol fermentation
e. H2S production
External infections can be treated by (intramuscular/surface/topical) administration, in which a drug is applied directly to the site of infection.
Fill in the blank(s) with the appropriate word(s).