Chapter 4 & 5 Test

A landslide causes part of a mountainside to fall away, leaving bare rock. In the years immediately following the landslide, the area will experience

• primary succession

• secondary succession

• tertiary succession

• climax community

A reintroduced population of wolves in a national park is 90% grey and 10% black, consistent with the wolf population in other regions. After several generations in isolation, the national park�s wolf population is 60% grey and 40% black. The wolf population has likely experienced

• natural selection

• genetic drift

• mutations

• migrations

In Madagascar, several species of lemur eat bamboo, but each species specializes in one part of the bamboo - one species eats mature bamboo stalks, one species eats bamboo shoots, and one species eats leaves. This is an example of

• speciation

• resource partitioning

• competition

• niche partitioning

When energy is transferred between trophic levels, the amount of available energy lost is about

• 90%

• 50%

• 25%

• 10%

Humans are generally

• carnivores

• hervivores

• omnivores

• detrivores

Any being that uses the sun�s energy to create sugars is a

• primary producer

• secondary producer

• primary consumer

• secondary consumer

Which best describes evolutionary success?

• A successful organism possesses adaptive traits and is able to pass those traits on to numerous offspring which then reproduce.

• A successful organism possesses traits that are different from traits in the rest of the population and that allow the organism to compete more successfully.

• A successful organism produces more offspring than others in the population.

• A successful organism possess adaptive traits and produces more offspring than survive.

In the years immediately after a fire, a forest will experience

• primary succession

• secondary succession

• tertiary succession

• a climax community

Which of the following best describes a successful individual in evolutionary terms?

• A successful individual possesses traits that are different from the traits of the rest of the population.

• A successful individual produces many offspring that possess unique traits

• A successful individual is well-adapted to its environment and produces offspring that survive to pass on genes.

• A successful individual will be well adapted to its environment and produce a few high quality offspring.

When the environment changes too quickly for an organism to adapt, what will occur?

• evolution

• speciation

• genetic drift

• extinction