Practice Questions

TLS Online TPP Program

#Question id: 11768

As documented by peter and rosemary grant, the population of the medium ground finch on the tiny island of Daphne major in the Galápagos archipelago responded how to changes in food resources associated with climate changes:

#Section 1: Ecology

During the drought of 1975-1978, the population decreased
The average beak size of surviving individuals, and their progeny, increased significantly between 1976 and 1978
During the exceedingly wet El niño year of 1983, birds with smaller beaks handled the abundant smaller seeds more efficiently and the average beak size of the population returned to a lower value
All of the above

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TLS Online TPP Program

#Question id: 16762

#Section 5: Applied Ecology & Evolution

The probability of rejecting the null hypothesis when it is true

TLS Online TPP Program

#Question id: 11770

#Section 2: Evolution

Natural selection in an animal population results in narrowing of the range of phenotypic variation but no change in the average phenotype. What kind of selection is this population experiencing?

TLS Online TPP Program

#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.

TLS Online TPP Program

#Question id: 12352

#Section 1: Ecology

Which of the following populations is most likely to go extinct?