Picea glauca is a seed-bearing plant. What other characteristic MUST be true of this species?
A. It produces flowers.
B. It produces fruits.
C. The gametophyte is the dominant generation.
D. It has vascular tissue.
E. Double-fertilization results in the production of endosperm.
D. It has vascular tissue.
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High concentrations of nucleic acids in the diet may lead to high levels of uric acid in the blood
Indicate whether this statement is TRUE or FALSE.
Within a genus that normally produces large numbers of offspring, one particular species evolves maternal care behavior. What do you predict will happen to the survivorship curve?
A. No change is likely. B. It may change from type I to type III. C. It may change from type III to type I. D. It may change from type I to type II.
Species having wide geographic distributions generally encounter a broader range of physical environmental conditions than species whose distribution is more restricted
Indicate whether the statement is true or false
The carbohydrate chains projecting from the plasma membrane are involved in
a. adhesion between cells. b. cell-to-cell recognition. c. reception of molecules. d. All of these are correct.