A bear at a national park has discovered that if it can open the lid of the trash cans, it is likely to find tasty food inside. Soon it is trying to open the trash cans all over the park. What mechanism of learning has occurred?
A. air conditioning
B. operant conditioning
C. habituation
D. classical (Pavlovian) conditioning
Answer: B
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Cnidarians evolved from an ancestral group of
(a) sponges. (b) protists. (c) fungi. (d) plants.
Based on the tree shown above, the presence of complex, multicellular fruiting bodies in Basidiomycete and Ascomycete lineages is an example of:
A. convergent evolution. B. a homologous trait. C. a synapomorphy uniting basidiomycetes and ascomycetes as sister taxa. D. a parsimonious trait. E. an ancestral character state.
Osmotic pressure is a function of the difference in the concentration of ____ on the two sides of the membrane
Fill in the blank with the appropriate word.
Which statement by J.T. indicates that further teaching about the medications is needed?
a. "I need to take these pills on an empty stomach." b. "I won't stop taking these until the prescription is finished." c. "I will not drink alcohol or take over-the-counter medicines while on these drugs." d. "I will call my doctor if I notice a rash, diarrhea, or increased bruising