Which group represents the oldest living plant lineage?
a. hornworts
b. liverworts
c. mosses
d. ferns
e. conifers
ANSWER: b
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Scientists isolate cells in various phases of the cell cycle. They find a group of cells that have times more DNA than G1 phase cells. The cells of this group are _____
A) between the G1 and S phases in the cell cycle B) in the G2 phase of the cell cycle C) in the M phase of the cell cycle D) in the S phase of the cell cycle
Autism, Alzheimer disease, Parkinson's disease, and schizophrenia are all associated with ____
a. copy number variants b. fragile sites c. inversions d. deletions e. translocations
The intercellular spaces between plant cells
a. contain air. b. are responsible for cytoplasmic streaming. c. produce energy for the cell. d. contain chloroplasts.
A line of evidence NOT considered by Darwin in his development of the theory of natural selection is
A. the fossil record. B. biogeography. C. comparative biochemistry. D. comparative anatomy.