The first major split in evolution separated
a. all three lineages from each other.
b. Archaea from bacteria and eukaryote ancestors.
c. Bacteria from Archaea and eukaryote ancestors.
d. eukaryote ancestors from Archaea and Bacteria.
e. none of these.
c
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All of the following are adaptations against predation in the open ocean except:
a. transparent bodies. b. colorful bodies. c. colonial lifestyles. d. countershading. e. silvery coloration.
A population that is growing exponentially in
the absence of limiting factors can be illustrated by which curve?
a. S-shaped b. J-shaped c. O-shaped d. bimodal e. skewed
A pine tree is
a. an angiosperm. b. a haploid plant body. c. a sporophyte. d. a living fossil. e. a gametophyte
Which carbohydrate, found only in plants, is indigestible by humans?
a. glycogen b. starch c. glucose d. sucrose e. cellulose