Ecology Quiz

In the African savanna, zebras rely on various elements for survival. Which of the following would be considered part of a zebra's habitat?

• predators

• feeding habits

• grasslands

• social structure

When two species share a habitat and utilize different resources to minimize competition, this is known as

• niche partitioning

• niche equivalency

• evolutionary response

• ecological equivalence

The Mantella frog and Poison Dart Frog occupy similar niches in similar habitats in different parts of the world. Because of this, they are considered to be

• competitors

• the same species

• interacting populations

• ecological equivalents

Frogs and snake compete to eat grasshoppers. This is a form of

• interspecific competition

• competitive exclusion

• intraspecific predation

• random dispersion

What word or phrase would be most appropriate to the right of "Commensalism" between the second organism? While the first organism benefits from the relationship. What effect takes place on the 2nd organism?

• may die over time

• neither benefits nor is harmed

• benefits

• is harmed

Which of these is an example of parasitism?

• A lion defends its territory.

• A squirrel stores food in a tree hole.

• A tick feed on a host's blood.

• A polar bear kills and eats a seal.

To measure population density, you must divide the number of individuals living in a defined space by the

• perimeter of the area.

• area of the space.

• birth and death rates.

• carrying capacity.

Nesting birds often space themselves evenly from other nests. This pattern is called

• clumped dispersion.

• uniform dispersion.

• random dispersion.

• type I dispersion.

Which type of organism would be most likely to have a type II survivorship curve?

• survivorship rate equal at all ages over life span

• Low infant mortality

• high birth rate, low infant mortality

• one that has high birth and infant mortality rates

Which of the following will increase the size of a population?

• emigration and deaths

• immigration and deaths

• emigration and births

• immigration and births