You observe a chimpanzee using a stick to dig termites out from a nest. The chimpanzee then eats the termites. This type of behavior is an example of ______________; the termites are the ______________
A. non-associative learning; stimulus
B. habituation; signal
C. sensitization; second stimulus
D. operant conditioning; reward
D
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Xanthophyll pigments __________
A. prevent formation of reactive oxygen species B. absorb light energy C. convert light energy into heat D. reflect yellow light E. All answer options are correct.
Early symptoms of which STD include flattened, painless chancres at the initial infection site; if left untreated in the
long term, this STD can cause mental illness, blindness, and death?
a. gonorrhea b. syphilis c. chlamydia d. trichomoniasis e. genital herpes
____ nucleotides form the code for one amino acid
a. Two b. Three c. Six d. Nine e. Twelve
Integral proteins with carbohydrates (sugars) attached that stick out on the exterior surface of cello membranes help recognize "self" and are called ______________.
a) amino acids b) lipoproteins c) glycoproteins d) monosccharides