Sponges are ____
a. herbivores
b. filter feeders
c. scavengers
d. predators
e. carnivores
ANSWER: b
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Draw a graph of relative fitness and number of mutations of an evolving strain versus the ancestral strain over 20,000 generations under the same growth conditions
Explain the change in fitness and mutations over time using evolutionary concepts and terms. What will be an ideal response?
What is false concerning the muscle enhancing
supplement creatine? a. The FDA banned the sale of creatine. b. Creatine is a short chain of amino acids. c. It improves performance in brief, high-intensity exercise d. It may strain kidneys. e. Commercial creatine products are not regulated.
Which structures are paired blocks of mesoderm found in the embryonic disc?
a. primitive streak b. neural tube c. notochord d. pharyngeal arches
e. somitesATP is composed of a sugar, the organic base adenine, and:
A. phenylalanine B. three nitrate groups C. two phosphate groups D. three phosphate groups