An inadequate supply of which of the cells depicted in Figure 44-2 may be responsible for anemia?
a. cell type A only
b. cell type B only
c. cell type C only
d. cell type D only
e. both cell type A and cell type C
B
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In an experiment the subjects or items being investigated are divided into the experimental group and
(a) the nonexperimental group. (b) the control group. (c) the statistics group. (d) none of these choices.
Harrison and van Buuren identified a phosphate transport protein in Glomus versiforme, which is a
a. carnivorous plant. b. bacterium that parasitizes plants. c. mycorrhizal fungus. d. bacteroid. e. parasitic plant.
Cells can store energy in each of the following molecules except
A) ATP. B) GTP. C) creatine phosphate. D) NADH. E) Cells can store energy in all of the above molecules.
Liverworts, hornworts, and mosses are grouped together as the Bryophytes. Besides not having vascular tissue, what do they all have in common?
A) They are all wind pollinated. B) They are heterosporous. C) They can reproduce asexually by producing gemmae. D) They require water for reproduction.