Which of the following is not a common cause of mutation?

A. exposure to chemical substances
B. events of meiosis
C. errors in replication
D. obesity
E. exposure to radiation


D. obesity

Biology & Microbiology

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A species' _____ niche comprises the full range of climate conditions and food resources that permit the individuals in a species to live

A. ecological B. fundamental C. realized D. ecological and fundamental E. ecological and realized

Biology & Microbiology

Studies show that ______ is the optimal amount of stress that people need to positively promote their health and sense of well-being, which coincides with _____ theory.

a. intensity; cognitive consistency b. distress; biological instinct c. eustress; arousal d. eustress; Maslow’s

Biology & Microbiology

During spermatogenesis in meiosis II, ____ form(s)

a. primary spermatocytes b. secondary spermatocytes c. spermatids d. mature sperm e. a zygote

Biology & Microbiology

Which of these groups is least closely related to the

other four? a. green algae b. red algae c. brown algae d. plants e. all of the above are equally closely related

Biology & Microbiology