Which of the following amino acids is not one of the 20 common amino acids found in cells?
A) leucine
B) isoleucine
C) glutamine
D) proline
E) pyrrolysine
E) pyrrolysine
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Internal fertilization, leathery amniotic egg, and skin that resists drying are characteristics of _____
A) amphibians B) nonbird reptiles C) chondrichthyans D) mammals E) birds
Which solution has the potential to diffuse the fastest?
a. A solution with large molecules as opposed to smaller ones. b. A solution with a higher concentration of molecules as opposed to one with a lower concentration. c. A solution that is under low pressure as opposed to one under high pressure. d. A solution that is at a low temperature as opposed to one at a higher temperature. e. A solution containing a hydrophilic solute as opposed to a salt.
The term "mycosis" is used to describe a disease caused by:
a) fungi b) viruses c) bacteria d) rickettsiae
The methods for solving for the intercept and slope of all of the following procedures will yield identical estimates except for which procedure?
A. Solution to 
= 0 and 
= 0
B. Solution to 
= 0 and 
= 0
C. Solving minb,m 
D. Solving minb,m