Fibroblasts are present in which tissue type?
a. connective tissue
b. epithelium
c. muscle
d. nervous tissue
e. all tissue types
a
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The sporangia (asci) of ascomycetes each ultimately produces:
A. eight diploid spores B. four genetically identical haploid spores C. four haploid spores, each genetically different D. eight identical haploid spores E. eight haploid spores, of which there are two each of four different genetic types
The process by which soil bacteria convert NH3 or NH4 to nitrate (NO3-) is called
A. assimilation. B. denitrification. C. fixation. D. nitrification. E. ammonification.
Suppose Priestley repeated his experiment using many kinds of plants besides mint, and that when different plants were placed under the jar the candle remained lighted for different periods of time. What would be a logical conclusion from these experiments?
a) Different plants require different amounts of water. b) Different plants release different amounts of carbon dioxide. c) Different plants require different amounts of light. d) Different plants release different amounts of oxygen.
Chloroplasts are composed of membranous sacs called ________ that carry chlorophyll. Surrounding these sacs is a ground substance called the ________.
Fill in the blank(s) with the appropriate word(s).