indicator, keystone, and invasive species - modified

The term biodiversity means:

• an ecosystem composed mostly of plants

• an ecosystem composed mostly of animals

• a wide variety of plants and animals in an ecosystem

• only a few types of plants and animals in an ecosystem

Tags

NGSS.MS-LS2-5

What is species diversity?

• the different animals in an area

• the different plants in an area

• the different habitats in an area

• the different living things (plants and animals) in an area

Tags

NGSS.MS-LS2-5

A life form that is very sensitive to environmental changes in its ecosystem. They can give us early-warning messages that a habitat is suffering.

• Keystone Species

• Indicator Species

• Invasive Species

• Predator

Rainbow trout are found in mountain streams and are sensitive to changes in their habitat. Which would be the best description for the use rainbow trout in water quality testing?

• biological indicator (indicator species)

• invasive species

• keystone species

A life form that heavily impacts an entire ecosystem. The loss of this species would be detrimental.

• Keystone Species

• Indicator Species

• Invasive Species

• Predator

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is a keystone species?

• A species that helps to hold an ecosystem together

• Keys and stones have nothing to do with ecology

• A species that lives in or around rocks

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

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is the effect of removing a keystone species from an ecosystem?

• biodiversity goes up

• biodiversity stays about the same

• biodiversity goes down

Tags

NGSS.MS-LS2-4

What is an invasive species?

• an organism that IS native to an area and causes harm to the environment/humans

• an organism that IS native to an area and helps the environment/humans

• an organism that is NOT native to an area and causes harm to the environment/humans

• an organism that is NOT native to an area and helps the environment/humans

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Why do the populations of invasive species grow so quickly?

• Invasive species are native to an area.

• Invasive species have no natural predators.

• Invasive species are prey to many animals.

• Invasive species keep the ecosystems in equilibrium.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The primary cause of invasive species introduction is

• too much food

• weather events

• human actions

• migration

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4