Ecology and Biodiversity

True or false: An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.

• True

• False

Tags

NGSS.MS-LS4-4

What is a keystone species?

• A keystone isn't a living thing, it's just a stone

• Keys and stones have nothing to do with ecology

• A species that lives in or around rocks

• A species that helps to hold an ecosystem together

A drought has hit this grassland biome. How will this effect the rabbit population?

• The rabbits will increase in number.

• The rabbit population will stay the same.

• The rabbit population will decrease.

• The rabbit population will become extinct immediately.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The struggle between organisms to survive as they attempt to use the same resource

• Predator

• Prey

• Competition

• Adaptation

Tags

NGSS.MS-LS2-4

What is an invasive species?

• A native (naturally found) species which are added to an area. 

• A non-native (not naturally found) species added to an area. 

• A keystone species in an environment

• none of the above

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What factor describes when populations increase because animals are moving into a population?

• Emigration

• Limiting Factors

• Immigration

• Exponential Growth

Which statement best describes an example of low species diversity?

• A population of frogs has a wide variety of skin colors

• A marsh ecosystem is covered by a single species of cattail bulrushes

• A state park includes multiple forest, wetland, and freshwater ecosystems

Tags

NGSS.MS-LS2-5

High biodiversity is a sign of a healthy ecosystem.

• True

• False

Tags

NGSS.MS-LS2-5

Biodiversity refers to

• extinct species

• the variety of species on Earth

• nonrenewable resources

• the rate of species decline

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-5

The higher the biodiversity, the more sustainable an ecosystem is.

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5