Plant tissues are more than 90 percent ____ by weight
a. carbohydrates
b. water
c. carbon
d. nitrogen
e. cellulose
B
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If the pattern seen in Daphnia is representative of other species that combine both sexual and asexual reproduction, we would expect asexual reproduction to be most common:
A. when environmental conditions are favorable. B. when environmental conditions are unfavorable. C. in the summer. D. in the winter. E. in the fall.
What is an example of an osmoregulator?
a. Jellyfish b. Fish c. Sea anemones d. Tunicates
The protein ____________________ produces power strokes that lead to sarcomere shortening. Fill in the blank(s) with the appropriate word(s)
Acetyl groups attached to histone tails generally indicate that the genes associated with this nucleosome will be
transcriptionally inactive Indicate whether the statement is true or false.