A monohybrid cross involves how many different traits?
A. 1
B. 2
C. 3
D. 4
Answer: A. 1
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Purple sulfur bacteria and filamentous sulfur-oxidizers both
A. accumulate sulfur as intracellular granules. B. fix nitrogen. C. produce oxygen from carbon dioxide. D. use gliding motility.
The phylum of green algae is:
a. Rhodophyta. b. Chlorophyta. c. Anthophyta. d. Dinophyta. e. Phaeophyta.
Which of the following is TRUE of exotic
species?
a. In general, exotic species do not have predators in their new location. b. An exotic species is a species that evolved in one region but has been introduced to and become established in another. c. An exotic species is often untroubled by competitors. d. An exotic species is often untroubled by parasites and diseases. e. All of these are true.
The animal phylum that contains the greatest number
of named species is a. Mollusca. b. Arthropoda. c. Nematoda. d. Chordata. e. Annelida.