Which of the following organisms employs a
contractile ring during cell division?
a. bears
b. humans
c. roses
d. pigs
e. more than one of these
E
Biology & Microbiology
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By the end of oogenesis, how many eggs are ready for fertilization?
a. 4 b. 3 c. 1 d. 2
Biology & Microbiology
Speciation occurs ____
a. after populations become reproductively isolated b. when mutations generate observable differences c. when transitional forms develop between different populations d. when natural selection pressures reach their maximum e. randomly as mutations build up in a population
Biology & Microbiology
Which is NOT a compound?
a. salt (NaCl) b. a carbohydrate (contains C, H and O) c. carbon (C) d. a nucleotide (contains P, C, H, and O) e. methane (CH4)
Biology & Microbiology
sodium helps to regulate pH and _______ balance in the body
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology