APES Notes 1.1 - Ecosystems

Five different species of warblers, seed-eating birds, live in the same species of conifer trees. All of the birds migrate to coniferous forests during the summer, and different species reside in different areas in the same tree. They feed on the seeds of the conifer trees, but the different species do not mate with each other.

 

Which of the following best explains why the different warbler species can all have habitats in the same conifer trees?

• Not all the warblers are residents in the forest at the same time of the year because of different migration patterns.

• Resource partitioning of the seeds reduces competition, and the five different species can live in the same tree.

• Physiological differences in beak structure allow the warblers to consume different species of seeds through symbiotic relationships.

• Niche overlap occurs between the five different species, and living in the same tree increases competition for seeds.

In a fish species, the number of eggs that hatch and survive for one year varies depending on the number of eggs that were produced. As the number of eggs produced increases past a threshold number, the survival rate of the offspring decreases. Which of the following statements best explains why only a limited number of offspring can survive in a fish population?

• The chance of survival decreases when there is intraspecific competition for resources among surviving yearlings.

• The number of fish surviving after one year is proportional to the number of eggs produced.

• Resource partitioning allows similar species to coexist in the same ecological community.

• More yearling fish survive beyond one year when there is an abundance of prey species present.

Which of the following best describes a symbiotic relationship?

• Striped bass and bluefish eat the same variety of mackerel.

• Mountain lions feed on white-tailed deer.

• Intestinal bacteria inhabit the gut of humans.

• Marsupial animals carry their young in a pouch.

How many sentences are required for an identify prompt? What are the basic requirements, according to your FRQ Task Verb Sheet?

How many sentences are required for a describe prompt? What are the basic requirements, according to your FRQ Task Verb Sheet?