What amount of body fat is normal and healthy for a 19-year-old woman?

A) 3%
B) 8%
C) 10%
D) 20%.


Answer: D) 20%.

Biology & Microbiology

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In all organisms, active transport across a membrane requires

A) equal concentrations of ions on both sides of the membrane. B) a resting potential of 0 mV. C) exergonic movement indicated by the direction of the electrochemical potential. D) an asymmetric distribution of ions across a membrane. E) both choices B and D

Biology & Microbiology

The process seen in many insects involving the pupa completely changing form into an adult is called

a. cephalization. b. coelom formation. c. skeletonization. d. molting. e. metamorphosis.

Biology & Microbiology

the main substrates for gluconeogenesis are the three carbon long molecules of alanine, glycerol, and _________

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Which class is made up of members commonly called chitons?

a. Cephalopoda b. Scaphopoda c. Polyplacophora d. Gastropoda

Biology & Microbiology