Like __________, phosphorus can only be taken up
by plants in __________.
a. carbon; ionized form
b. nitrogen; compounds
c. nitrogen; ionized form
d. hydrogen; ionized form
e. carbon; compounds
Answer: c
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In order for a target cell to receive a signal, it must possess a ____ specific to the signaling molecule
a. glycolipid b. glycoprotein c. receptor d. transfer protein e. hormone
Farsightedness can be caused by:
a. a longer than normal eyeball b. a shorter than normal eyeball c. weak lens muscles d. a longer than normal eyeball and/or weak ciliary muscles e. a shorter than normal eyeball and/or weak ciliary muscles
The leaflike appendages of moss gametophytes may be one- to two-cell-layers thick. Consequently, which of these is least likely to be found associated with such appendages?
A) cuticle B) rosette cellulose-synthesizing complexes C) stomata D) peroxisomes E) phenolics
If we find an orange plant that lacks chlorophyll living on a green plant, it is likely that the orange plant is a:
A) predator. B) commensal. C) parasite. D) host.