The function of the structure labeled 1 in Figure 35-2 is:
a. the formation of pith.
b. protection.
c. conduction of water and dissolved minerals from the roots.
d. conduction of sugars from the leaves.
e. photosynthesis.
C
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These two different lifestyles are an example of a __________
a. resource b. tradeoff c. habitat d. constraint
An allele is ____ if its effect masks that of a ____ allele paired with it
a. recessive; codominant b. codominant; recessive c. recessive; dominant d. dominant; recessive
e. incompletely recessive; dominantCatabolite activator protein:a
increases the affinity of the promoter region for RNA polymerase. b. decreases RNA polymerase activity. c. becomes nonfunctional when it binds to AMP. d. binds and activates RNA polymerase. e. blocks RNA polymerase access to the DNA template
The most energy is contained within the ____ in the figure diagram above.
A. human
B. frogs
C. trees
D. Each level contains identical amounts of energy. (Energy cannot be created or destroyed.)