In the early plant embryo, cells divide asymmetrically. Which structure does not result from divisions of the apical (terminal) cell?
A) the suspensor
B) the cotyledons
C) the hypocotyls
D) the shoot
Answer: A
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If an organism produces abnormally high levels of leptin, predict what would happen to that organism's weight, and explain why the change would occur.
A. Weight gain would occur as a result of increased fat storage. B. Weight gain would occur as a result of increased appetite. C. Weight loss would occur as a result of increased metabolic activity and reduced fat storage. D. Weight loss would occur as a result of decreased digestive enzyme production. E. Weight loss would occur as a result of decreased appetite.
Which of the following BEST defines a sensory receptor?
a. an organ, such as the human eye b. endings of sensory neurons c. highly branched endings of axons d. any form of energy e. an action potential
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.
You are studying a newly discovered fungus and find an area of a hyphae that contains cells with two nuclei. You should classify these cells as diploid.
Answer the following statement true (T) or false (F)