Homplastic traits are similar for reasons other than those due to inheritance from a common ancestor
a. true
b. false
Answer: a. true
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An arg- strain of E. coli is transformed with a plasmid carrying the wild-type (arg+) gene. The transformed cells are replica-plated to two minimal medium plates: one supplemented with arginine and one lacking arginine
The transformed cells would grow on A) only the plate supplemented with arginine. B) only the plate lacking arginine. C) both plates. D) neither plate. E) the plate supplemented with arginine, but only if a mutation occurred.
Most protists are ____, with each cell forming a complete organism capable of performing all the functions
characteristic of life. a. parasitic b. colonial c. unicellular d. autotrophic e. multicellular
Matter is composed of
A. atoms. B. mass. C. molecules. D. energy.
Parasitism, competition, and predation are density-independent factors that help control population size.
Answer the following statement true (T) or false (F)