Science 7 Final Exam

Which action is an example of a change that will MOST likely decrease the population of many species?

• the preservation of more national forests

• the filling in of wetland areas for development of vacation homes

• the destruction of one city building to rebuild another in its place

• a wetter-than-normal summer in the Great Plains that causes more grass to grow

Scientists have shown that clearing the forest in the Amazon for farming is causing the extinction of native species. Which is the MOST direct cause of extinction from clear-cutting of land?

• Pollution

• habitat loss

• climate change

• use of fertilizers

Which organism would MOST likely be harmed by a loss of native plants in the area?

• the fungi that break down dead plants

• the beetles that eat a variety of grass roots

• the mosquitoes that hide under plant leaves

• the caterpillars that eat only one type of plant

The MOST common way humans contribute to the extinction of organisms is by

• rotation of crops.

• use of fertilizers.

• destruction of habitat.

• introduction of competing species.

Which human activity would preserve nonrenewable resources?

• deforestation
• removing carnivores from a forest 
• recycling
• heating homes with fossil fuels  

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-1

What are renewable resources?

• Resources that are used faster than they form
• a.  Resources that can replenish themselves over time
• a.  Resources that exist only in urban areas
• Resources that exist only in rural areas

Which of the following is a renewable resource?

• coal
• solar energy
• natural gas
• oil

Biodiversity describes the variety of life across levels of ecological organization.

• True
• False

What is protecting Biodiversity?

• Protecting an individual endangered species or entire ecosystem

• Harming an entire ecosystem

• Contaminating the environment with pollution

• All of the above

An organism that is currently living where they are not native

• invasive species

• keystone species

• species diversity

• all species