Population Genetics — Unit test Answers

The total number of organisms an ecosystem can support is its tolerance range.

A quaternary consumer species would be expected to have a smaller population than a secondary consumer species.

Which of the following conditions would lead to a small population size?

While trees are not the largest level in the pyramid of numbers, they are still the base for both the pyramids of biomass and pyramids of energy.

For which method of determining population size is the population not aware of the sampler’s presence?

Variation of ecological habitats within a species is characteristic of which type of diversity?

Which of the following is not a part of Darwin’s theory of evolution?

The Great Burdock plant’s seeds have spines on them that attach to the fur of animals that brush against it. The seed then travels with the animal until it eventually falls off, which spreads the plant’s seeds farther than the plant could have done. What type of symbiotic relationship is this?

Orange trees planted in a grove or orchard would most likely fall in which category of population distribution?

Bottleneck events are always caused by the death of most of a species’ population.

Which of the following species would you most expect to be distributed according to a regular pattern?

Which of the following statements about logistic growth curves is true?

Which of the following selection pressures is responsible for the limited evolutionary changes experienced by alligators and other crocodilians?

Which of the following is most likely an example of genetic drift resulting from the founder effect?

How can an increase in biodiversity lead to an increase in ecosystem stability?

It is advantageous for a predator to prey exclusively on a single prey species.

Organisms that have a physical trait that makes it easier for them to access food supplies are unlikely to pass on that trait to their offspring.

What discovery led Darwin to develop his theories on adaptation?