What are male secondary sex characteristics in humans? Check all that apply.
A. increase in muscle mass
B. decrease in testosterone levels
C. deepening of voice
D. decrease in body hair
E. increase in facial hair
Answer: E
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In which of the following regions in the host bacterium are you most likely to find Bdellovibrio?
A. The cytoplasm B. The nucleoid C. The cell nucleus D. The space between the cell wall and plasma membrane
Rhizobium and Bradyrhizobium are significant contributors to which process when engaged in a symbiotic relationship with leguminous plants?
A. Sulfate reduction B. Denitrification C. Nitrification D. Nitrogen fixation
Membrane lipids are capable of many different types of movement. Which of these does not occur spontaneously in biological membranes?
a. switching between lipid layers b. lateral movement c. rotation d. flexing of hydrocarbon chains
Mitochondria perform cellular respiration, a process that uses oxygen, generates carbon dioxide, and produces chemical energy for the cell
Which answer below indicates a correct pairing of material "burned" and the form of energy produced during cellular respiration? (a) fat, ADP (b) sugar, fat (c) sugar, ATP (d) fat, protein