In what way do the clitoris and penis resemble each other?
A. They both vary in size from one person to another.
B. They both serve known reproductive functions.
C. They both possess channels for the passage of urine.
D. They both have very few nerve endings on their surface.
A. They both vary in size from one person to another.
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Which of the following is not a function of the eukaryotic glycocalyx?
A. Adherence B. Reception of chemical signals C. Movement D. Protection
A tree grows wider each year because of ________. I) apical meristem II) vascular cambium III) cork cambium
A) I only B) II only C) II and III D) I, II, and III
The leaves of plants can be thought of as "eating" sunlight. From an energetic perspective this makes sense because:
a. light energy, like chemical energy released when the bonds of food molecules are broken, is a type of kinetic energy. b. the carbon-oxygen bonds within a photon of light release energy when broken by the enzymes in the chloroplasts. c. both light energy and food energy can be converted to kinetic energy without the loss of heat. d. photons are linked together by hydrogen bonds, which release energy when striking the surface of a leaf. e. the carbon-hydrogen bonds within a photon of light release energy when broken by the enzymes in the chloroplasts.
Which protein modification is most closely linked to protein degradation?
A) phosphorylation B) acetylation C) glycosylation D) methylation E) ubiquitination