Science 7 Module 3 Unit Test

Which of the following is not an indication of ecosystem health?

• high level of biodiversity

• variation within a species

• able to resist changing under different condition

• very few different species present

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The end result of ecological succession is called?

• Primary Ecosystem

• Secondary Ecosystem

• Climax Community

• None of these

This type of ecosystem succession begins with bare rock and takes a very long time to occur.

• primary

• secondary

• tertiary

• all of these

Using the food web below to answer the following question.

Owls are responsible for keeping the balance in the ecosystem, this would make them?

• producer

• autotroph

• keystone species

• invasive species

Tags

NGSS.MS-LS2-2

Use the picture to answer the following question:

What type of succession is pictured?

• primary

• secondary

• tertiary

• all of these

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The diagrams represent the same location over a period of many years. The sequence of diagrams best shows that, over time,

• erosion increases

• climates get colder

• communities stay the same

• ecological succession occurs

Which factor is most likely to cause the number of rabbits living in an area to increase?

• less water

• lack of shelter

• fewer predators

• limited food

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

All of the different organisms interacting in a pond make up

• a community

• the water cycle

• a population

• the habitat

Competition within a pack of wolves may increase if there is an increase in the

• amount of food available

• amount of oxygen available

• size of their population

• size of the area they inhabit

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following are examples of ecosystem services?

• Wetlands act as a natural water filtration process helping keep the water clean for humans and animals to use safely.

• Providing food and raw materials.

• Forests help regulate the climate by removing carbon dioxide from the atnosphere.

• All of these

Tags

NGSS.MS-LS2-5