What effect does light have on retinal?
a. causes retinal to vibrate and warm up
b. induces retinal to emit a high-energy photon
c. transforms it from cis retinal to trans retinal
d. decomposes retinal into rhodopsin and an opsin
c. transforms it from cis retinal to trans retinal
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The most significant role played by pH buffers is to
A. prevent fluctuations in the acidity of solutions. B. increase the strength of acids and bases. C. prevent fluctuations in the salinity of solutions. D. limit major shifts in the amount of H+ and OH- in solution. E. keep pH low.
Skeletal muscle growth and development is inhibited by ____ produced in muscle cells
a. erythropoietin b. acetylcholine c. epidermal growth factor d. epinephrine e. myostatin
Humans and houseflies are examples of what type of species?
a. generalist b. specialist c. dominant d. primary e. biotic
Which structure generates the ATP that is required for movement of the sperm's tail?
A) a mitochondrion in the neck and middle piece B) mitochondria in the sperm tail C) the sperm plasma membrane D) the acrosome