In birds and reptiles, waste ammonia is usually converted to ____
a. uric acid
b. protein
c. carbohydrates
d. carbon dioxide
e. glucose
ANSWER: a
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Which of the events listed below occurs in the light reactions of photosynthesis?
A) NADP is produced. B) NADPH is reduced to NADP+. C) Carbon dioxide is incorporated into PGA. D) ATP is phosphorylated to yield ADP. E) Light is absorbed and funneled to reaction-center chlorophyll a.
Alcohols are more effective at inactivating enveloped viruses than naked viruses.
Answer the following statement true (T) or false (F)
A pigment that absorbs red and blue light and reflects green light is
A) xanthophyll. B) phycocyanin. C) chlorophyll. D) carotenoid. E) melanin.
If after several generations most males have antlers with 20 points, this development will have been the result of:
A) disruptive selection. B) bottleneck effect. C) directional selection. D) founder effect.