An important role of bacteria is:
a. primary producers.
b. decomposers.
c. nitrogen fixation.
d. all of the above
D
Biology & Microbiology
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Which of the following hormones stimulates uterine contractions during the birth process in mammals?
A. oxytocin B. testosterone C. FHS D. chorionic gonadotropin E. LH
Biology & Microbiology
Vascular plants, ranging from tulips to pine trees, have several key advantages over most lower plants, like moss. Name these advantages
What will be an ideal response?
Biology & Microbiology
The term for a close association between organisms of two or more species is
A) symbiosis. B) exotoxin. C) endotoxin. D) mixotrophic.
Biology & Microbiology
Which region(s) of the X chromosome recombine during meiosis?
A) the heterochromain B) the pseudoautosomal regions C) the male-specific region of the Y D) the centromere E) SRY
Biology & Microbiology