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Question
Hormones are used primarily fora. signaling target cells in the vicinity of the secreting cells.
b. stimulating transmitter release at certain synapses.
c. integrating social behavior in a population.
d. causing a response in a part of the body some distance from the site of secretion.
e. all of these, depending on the species.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Choose the one most appropriate response for each.
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d. stores fat
e. offers resistance to mechanical injury and loss of internal fluids; also a barrier against microorganisms
f. secretes extracellular products such as sweat, mucus, tears, and saliva
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Circadian
Choose the one most appropriate answer for each. Some letters may not be used.
a. flower each successive year or after several years of vegetative growth
b. promotes cell elongation in stems
c. has receptor sites for a particular hormonal message
d. a hollow, cylindrical organ that protects young leaves growing within it
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c. has receptor sites for a particular hormonal message
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Q:
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b. gibberellin.
c. cytokinin.
d. abscisic acid.
e. ethylene.
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c. uses membrane pumps to move hydrogen ions out of the cytoplasm into the primary cell wall.
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Q:
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b. promote the transcription of an enzyme that breaks down cytokinin.
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d. help young cells elongate so that shoots and roots lengthen.
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b. abscisic acid.
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d. citric acid.
e. nitric acid.
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c. move when conditions around it deteriorate.
d. produce its own lipids and proteins.
e. respond to dwindling supplies of nutrients and water.
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b. cellulose
c. peptidoglycan
d. exopolysaccharides
e. none of these
Q:
Sperm nuclei are indicated by
a. A.
b. B.
c. C.
d. D.
e. E.
Q:
Meiosis is indicated by
a. A.
b. B.
c. C.
d. D.
e. E.