A moss spore develops into a young gametophyte called a(n) ____
a. gametangium
b. antheridium
c. protonema
d. prothallus
e. archegonium
ANSWER: c
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Which body form of the cnidarians is sessile?
A. The jelly B. The polyp C. The fish D. The medusa
A mark-recapture program marked 10 individuals in the first catch. The second catch has a total of 8 individuals, 4 of which were recaptures. What is the estimate of total population size?
A. 40 B. 42 C. 22 D. 20 E. 24
Cytoplasmic organelles are:
a. absent in prokaryotic cells; present in eukaryotic cells. b. present in both prokaryotic and eukaryotic cells. c. present in prokaryotic cells; absent in eukaryotic cells. d. absent in both prokaryotic and eukaryotic cells.
Which of the following bacterial genera produce(s) endospores?
A) Bacillus B) Clostridium C) Lactobacillus D) both Bacillus and Lactobacillus E) both Bacillus and Clostridium