Ecosystem changes- TCI Lesson 7

Front

Which of the following would have a negative impact on an ecosystem: building highways, planting trees, recycling paper?

Back

building highways

Front

An ______________ is a system made up of all the living and nonliving factors in an area and all the interactions among them.

Back

ecosystem

Front

Which organism do the owl and the weasel compete for in the food web? Options: Hawk, Spider, Grasshopper, Shrew

Back

Shrew

Front

Which is NOT an example of a natural environmental change? Options: a beaver dam, a hurricane, a volcanic eruption, a housing development

Back

a housing development

Front

How does a bird "change its environment" to meet its NEEDS?

Back

builds a nest

Front

An example of a natural change to the ecosystem is:

Back

Lightening strikes and starts a fire in the forest.

Front

A fire destroys all of the trees and plants in the forest. How might this affect the birds in the area?

Back

The birds will have no place to build their homes.

Front

Which of the following activities has a positive effect on the environment? Options: recycling, deforestation, pollution

Back

recycling

Front

What do scientists call organisms that are not native to an ecosystem and cause harm to native organisms? (Options: native plants, invaders, invasive species, natural species)

Back

invasive species

Front

A natural change to an ecosystem occurs when

Back

a severe drought causes plants to die.