In Gibson’s experiment with small mammal populations in the tropical forest, ____
a. most species disappeared from small islands within the first 5-7 years after fragmentation
b. all species disappeared from small islands within the first 5-7 years after fragmentation
c. populations increased 25 years after fragmentation
d. most species disappeared from small islands, but quickly recolonized after 5-7 years
e. fragmentation had no affect on small mammal species
ANSWER: a
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Why are carbon-based organic compounds, such as C6H12O6 (glucose), often referred to as "energy molecules"? Select all that apply
A. Energy is released when carboncontaining compounds are broken down. B. Energy is stored in carbon-containing organic compounds. C. Energy is required to build carboncontaining organic compounds. D. None of the aboveâ€"carbon-containing organic compounds and energy are not related.
Substance C is secreted from a neuron, and binds to its receptor on a nearby cell, triggering an increase in intracellular
cAMP. Substance C is therefore a ligand for a ____.
a. a receptor tyrosine kinase b. a G-protein-coupled receptor c. a hormone receptor d. a ligand-gated ion channel e. guanylyl cyclase
Which region(s) of the ribosome accept(s) charged tRNA molecules during the elongation phase of translation?
a. the A site b. the A site or the E site c. the P site d. the P site or the E site e. the E site
Answer the following statements true (T) or false (F)
1.The type of animal behavior that is inborn and does not require experience or learning to be performed correctly is innate behavior. 2.Imprinting is a kind of rapid learning that occurs only during a restricted time, early in the life of an animal. 3.In almost all cases, innate and learned behaviors are determined by both genetics and environment. 4.The scientific study of animal behavior is ethology. 5.If an individual reduces its own fitness for the survival of and reproduction of nondescendant relatives is termed kin selection.