The evolution of __________ was crucial in the
evolution of plants from aquatic to terrestrial
environments.
a. roots
b. leaves
c. stems
d. stomata
e. all of these
Answer: e
You might also like to view...
Now extinct, tooth parts of ____ are abundant as fossils dating from the early Paleozoic to the early
Mesozoic era. These jawless fishes are considered to be the earliest vertebrates with bonelike structures.
a. acanthodians b. conodonts c. osteolepiforms d. placoderms e. ostracoderms
The nuclear condition (ploidy) that club fungi
spend most of their lives in is
a. diploid. b. haploid. c. dikaryotic. d. mycokaryotic. e. triploid.
The state during which muscle cells require more ATP than cellular respiration can provide is known as ____
a. summation b. tetanus c. paralysis d. lactic acid debt e. oxygen debt
Shrews have been documented to travel across frozen lakes and establish populations on previously uninhabited islands. The low level of genetic diversity in the new populations is the result of
A) genetic drift. B) a population bottleneck. C) coevolution. D) the founder effect. E) assortative mating.