You are a botanist surveying a previously unstudied island. You discover a plant that has a small freeliving
gametophyte that requires external water for fertilization. After fertilization, a large sporophyte
with xylem and phloem develops. The gametophyte dies, and the free-living sporophyte eventually
releases spores from sporangia on the margins of its leaves. Into which group should you classify this
plant?
a. bryophytes
b. ferns
c. gymnosperms
d. angiosperms
e. algae
B
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What is the function of the sliding clamp in DNA replication?
a. unwind DNA ahead of the replication fork b. anchor DNA polymerase to the template strand c. remove DNA polymerase from the template strand d. anchor primase to the template strand e. bind to single stranded DNA to stabilize it before it is replicated
The human immunodeficiency virus may infect
a. sperm cells. b. white blood cells. c. purple blood cells. d. red blood cells. e. egg cells.
During translation, attachment of a "start" codon to the small ribosomal subunit constitutes the beginning of the ________ stage
Fill in the blank(s) with correct word
Action potentials stimulate the sarcoplasmic reticulum to release chloride ions into the muscle cell
Indicate whether the statement is true or false