Cyanobacteria modulate the relative amounts of their different photopigments in response to the wavelength of incident light by a process known as ________.
A. light shifting
B. chromatic adaptation
C. adaptive photopigmentation
D. wavelength adaptation
Answer: B
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Describe the physical processes that result in the summer and winter stratification in temperate zone
lakes. What causes the mixing in the spring and fall? What are major consequences of the winter stratification on the biota of the lake? What will be an ideal response?
Suppose that extra fingers and toes are caused by a recessive trait, but it appears in only 80% of homozygous recessive individuals. Two heterozygotes conceive a child. What is the probability that this child will have extra fingers and toes?
A. 15% B. 5% C. 20% D. 10% E. 25%
The text says that bovine somatotropin can be given to cows to boost milk production. Suppose that it would be possible to alter the genes of cows so that the animals always made excess somatotropin. What concerns do you think people might have about
this procedure? What will be an ideal response?
All of the true pathogen fungi discussed in this chapter are
A) members of the Ascomycota. B) members of the Zygomycota. C) dimorphic. D) members of the Ascomycota and are dimorphic. E) members of the Zygomycota and are monomorphic.