Which of the following is unique to the green sulfur bacteria?
a. bacteriochlorophyll c
b. carotenoids
c. photosystem I
d. chlorosomes
Answer: D
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The term that is the culmination of coitus is ____
a. sexual arousal b. fertilization c. ejaculation d. orgasm e. sexual intercourse
Many zooplankton migrate to the surface to graze on phytoplankton during the day and retreat to deeper water during the night
Indicate whether the statement is true or false
Suppose that round is the dominant allele for a pea; the recessive allele produces a wrinkled pea. How can true-breeding pea plants having round peas be obtained with the least amount of work?
a. perform a testcross of the plants with wrinkled peas to determine which are true breeding b. perform a testcross on the plants with round peas to determine which are true breeding c. perform multiple crosses between plants with round peas until one emerges that seems true breeding d. perform multiple crosses betwe
Which of the following statements about telomeres is INCORRECT?
A. Telomeres are crucial to the viability of a cell that replicates often. B. Telomeres would be longer in cells of older than younger individuals. C. Telomeres are short repeat sequences. D. Telomeres are lengthened by telomerase. E. Telomeres are found at the ends of chromosomes.