What life history patterns in some rotifers are adapted to living in small bodies of water?
What will be an ideal response?
Since small bodies of water are susceptible to drying periods and freezing, rotifers ability to reproduce
asexually through parthenogenesis in different ways in different conditions is adaptive. During most
months, females produce diploid females. But when environmental conditions deteriorate, females
produce haploid males that fertilize haploid eggs to produce diploid female zygotes. These fertilized
eggs have durable shells and food reserves that allow them to survive drying or freezing.
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During which cell cycle phase(s) are chromosomes composed of two DNA molecules?
A) G2 B) G1 C) anaphase D) Answers (A) and (B) are correct. E) Answers (A), (B), and (C) are correct.
During fermentation, the immediate fate of the electrons in NADH is that they:a
are transferred to the electron transport chain. b. are transferred to an organic molecule. c. are transferred to O2. d. are used to make CO2. e. are used to form H2O.
Which one of the following structures is NOT a part of the appendicular skeleton?
A. humerus B. fibula C. radius D. coxal E. ribs
A species of the genus Streptococcus is the leading cause of
A. tuberculosis. B. urinary tract infections. C. contaminated milk and meat. D. "flesh-eating" bacterial infections. E. food poisoning from rice.