Which organism causes the highest number of sexually transmitted diseases each year?
A) Neisseria gonorrhoeae
B) Treponema pallidum
C) Chlamydia trachomatis
D) Trichomonas vaginalis
Answer: C
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Which of the following do accessory pigments
NOT do?
a. absorb additional wavelengths of light for photosynthesis b. provide protection from UV light c. attract animals for the purposes of seed dispersal and pollination d. reflect white light e. make roses red and violets blue
Mammals appeared 220 MYA but did not begin to greatly diversify until 65 MYA - why? What will be an ideal response?
Which of the following blocks HIV binding to host cell receptors?
A. Fuzeon B. Acyclovir C. Nevirapine D. Amantidine E. AZT
Figure 22.18
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Refer to the above figure for questions.
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In the accompanying illustration depicting the life cycle of a conifer (pine), which numbered item represents the sporophyte?
A. 1 B. 2 C. 3 D. 4 E. 5