Explanation of the evolution of eukaryotic organelles by phagocytosis of prokaryotes.
What will be an ideal response?
endosymbiotic theory
Biology & Microbiology
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The protrusible rasping organ in a mollusk's mouth that is used to scrape food from the substrate is:
A. a veliger B. a visceral mass C. composed of nacre D. a radula E. an ammonite
Biology & Microbiology
In the United States, how many embryos,
created by IVF, remain frozen?
a. 10,000 b. 50,000 c. 100,000 d. 500,000 e. 1,000,000
Biology & Microbiology
Dependence on animal vectors for fertilization
and dispersal is characteristic of many species of a. ferns. b. angiosperms. c. mosses. d. conifers. e. cycads.
Biology & Microbiology
Refer to Figure 51-3. The chorion is identified by number:Refer to Figure 51-3. The chorion is identified by number:
a.
1.
b. 2.
c. 3.
d. 4.
e. 5.
Biology & Microbiology