The principal species of Staphylococcus found on the skin is
A. aureus.
B. acnes.
C. pyogenes.
D. epidermidis
D.
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If two males compete directly with one another over access to a group of females, this is a form of ____ (intra/inter) sexual selection?
Fill in the blank with the appropriate word.
Pedigree construction can be a difficult task
a. True b. False
How does transformation differ from conjugation?
A) Transformation takes up DNA from the environment. B) Transformation requires only fresh DNA be used. C) Transformation involves a pilus. D) Transformation can only exchange DNA between bacteria of the same species. E) Transformation requires DNA to be on a plasmid.
Prokaryotes were once described based on structures that were present in eukaryotes, but absent in prokaryotes.
Answer the following statement true (T) or false (F)