In flowering plants
a. the gametophytes are smaller than the sporophytes and do not nourish themselves.
b. the gametophytes are smaller than the sporophytes but are free-living and nourish
themselves for most of their lives.
c. the gametophytes are usually larger than the sporophytes, but both gametophytes and
sporophytes nourish themselves.
d. the gametophytes are usually larger than the sporophytes, and the sporophytes grow out of
the gametophytes and are nourished by them.
e. the gametophytes and sporophytes are roughly equal in size and each nourish themselves.
A
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The main function of bacterial capsules is:
A. Survival against environmental dangers B. induction of antibiotic resistance C. Protection of bacteria against phagocytosis D. Recognition of specific receptors on target cells E. Reproduction
Both respiration and photosynthesis use water molecules for the donation of hydrogen ions
Indicate whether the statement is true or false
A hybrid zone is properly defined as
a. an area adjacent to tow closely related species b. an area where mating occurs between members of two closely related species, producing viable offspring c. a zone that features a gradual change in species compostion between two neighboring ecosystems that border each other d. a zone that includes the intermediate portion of a cline e. an area where members of two closely related species intermingle, but experience no gene flow.
Leiomyomas are a type of smooth muscle cancer that occurs in the uterine wall.
Answer the following statement true (T) or false (F)