The letter C indicates a ____
a. primary producer
b. primary consumer
c. second-level consumer
d. third-level consumer
e. fourth-level consumer
ANSWER: c
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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
The process of converting nitrogen gas to ammonium is called
A) biogeochemical processing. B) sublimation. C) nitrogen fixation. D) evaporation. E) nitrification.
An egg with 22 chromosomes that is fertilized by a normal sperm will result in
a. a zygote with trisomy. b. a zygote with disomy. c. a zygote with monosomy. d. a zygote with normal chromosome number.
In phototropism, shoots respond to ____ light
a. red b. green c. yellow
d. blue e. ultra-violet