Which of the following groups of plants contain microphylls?
A. Bryophytes
B. Angiosperms
C. Gymnosperms
D. Pteridophytes
E. Lycophytes
Answer: E
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In contrast to linear DNA, circular DNA replication typically:
A. has a single origin of replication. B. does not produce a replication bubble. C. occurs only at a single replication fork. D. does not produce Okazaki fragments. E. All of the answer options are correct.
The liverwort genus Marchantia can reproduce asexually by way of ____, small cell masses that form in cuplike
growths on a ____.
a. antheridia; gemmae b. gemmae; thallus c. archegonia; thallus d. thallus; gemmae
e. antheridia; thallusNitrous oxide
a. is a more potent greenhouse gas than carbon monoxide b. is released in the burning of fossil fuels c. destroys the ozone d. is found in synthetic fertilizers e. is all of the above
The atmosphere of early Earth is currently thought to have contained:a
methane, water, ammonia, nitrogen, and oxygen b. carbon dioxide, water, oxygen, nitrogen, and hydrogen c. carbon dioxide, ozone, nitric oxide, water, and hydrogen sulfide d. carbon dioxide, water, carbon monoxide, hydrogen, and nitrogen e. carbon dioxide, carbon monoxide, water, hydrogen, and nitric oxide