A dog jumps through a hoop. He is rewarded with a dog biscuit. Thereafter he readily jumps through the hoop as long as he is rewarded. This is an example of
A. learning.
B. imprinting.
C. instinct.
D. insight.
A. learning.
Biology & Microbiology
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________ alter repressor proteins thereby increasing the rate of transcription initiation.
A. Effectors B. Corepressors C. Inducers D. Modulators
Biology & Microbiology
Which of the following is not among the first line of defenses against infection?
a. resident bacterial populations d. skin b. tears, saliva, gastric fluid e. complement c. urine flow f. lysozyme
Biology & Microbiology
Of the three regions of a human kidney, which is the innermost layer?
A) Renal pelvis B) Renal medulla C) Renal cortex D) Calyx
Biology & Microbiology
Growth is an example of a ____ process.
A. metabolic B. generative C. responsive D. control
Biology & Microbiology