Chapter 15

What is a habitat?

• The complete disappearance of a species

• Animals that are not native to an area

• An organisms job in the ecosystem

• The natural home or environment of an organism

Causes of habitat destruction include __________. (select all that apply)

• Poor fire management and storm damage

• Mining and pollution

• Planting trees

• Over hunting and over fishing

• Building houses

Another word for invasive species is? (select all that apply)

• Organism

• Exotic species

• Native species

• Non-native species

Invasive species __________.

• Disrupt food chains

• Take or destroy niches

• Out-compete native species

• Throw the ecosystem out of balance

• All of the above

What types of plants and animals have MORE diversity?

(Species with more diversity are better able to survive and adapt.)

• Wild plants and animals

• Domesticated plants and animals

• Industrial cattle

• Pure-bred dogs

The loss of what type of species would have the greatest effect on an ecosystem?

• Herbivore

• Omnivore

• Carnivore

• Producer

• Consumer

A measurement of the amount of variation of the species in an area.

• Biodiversity

• Habitat

• Niche

• Population

• Community

What two ecosystems have the highest biodiversity? (select 2)

• Deep ocean

• Arctic tundra

• Coral reef

• Tropical rain forest

Small organisms are less important than large organisms.

• True

• False

Which organisms are able to "fix nitrogen" and make it available for plants?

• Viruses

• Bacteria

• Trees

• Insects

• Algae