#Question id: 4636
#Section 2: Evolution
Given a population that contains genetic variation, what is the correct sequence of the following events, under the influence of natural selection?
1. Well-adapted individuals leave more offspring than do poorly adapted individuals.
2. A change occurs in the environment.
3. Genetic frequencies within the population change.
4. Poorly adapted individuals have decreased survivorship.
#Question id: 3254
#Section 2: Evolution
Consider a single locus with 2 alleles which are at Hardy-Weinberg equilibrium. If the frequency of the heterozygous genotypes is 0.42, what is the frequency of one homozygote in the population?
#Question id: 12322
#Section 1: Ecology
#Question id: 10868
#Section 1: Ecology
Which of the following relationships describes competition?
#Question id: 3480
#Section 2: Evolution
Which of the following statements about learning and behavior is correct?
A) Operant conditioning involves associating a behavior with a reward or punishment.
B) Associative learning involves linking one stimulus with another.
C) Behavior can be modified by learning, but some apparent learning is due to maturation.
D) Imprinting is a learned behavior with an innate component acquired during a sensitive period.