All EXCEPT which of the following is true of the
spinal cord?
a. houses connections between sensory and motor
neurons
b. serves as a reflex center
c. its gray matter serves as passageway for nerve
tracts to brain
d. is covered with meninges
e. is enclosed by vertebrae
Answer: c
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After fertilization in flowering plants, an embryo in a seed
a. begins as a gametophyte and ends up as a sporophyte before germination. b. is always a sporophyte. c. is usually a gametophyte but can be a sporophyte. d. begins as a sporophyte and ends up as a gametophyte before germination. e. is always a gametophyte.
Four of the five answers listed below are
haploid. Select the EXCEPTION.
a. gametophyte b. zygote c. sperm d. egg e. gamete
A bacterium is an example of a
a. prokaryotic cell. b. eukaryotic cell. c. plant cell. d. all of the above.
If a certain species has a haploid number of 4, how many DNA molecules would be present in G2?
a) 16 b) 4 c) 8 d) 2