Succession
Healthy Ecosystems
Valdez Oil Spill
Human Effects
Natural Hazards
100

What is the process in which damaged ecosystems experience regrowth and restoration?

stages of succession

100

What vocabulary word refers to the idea that many organisms can live together in the same ecosystem, sharing resources and interacting?

cooperative

100

What was the Exxon Valdez ship carrying when it crashed in Prince William Sound?

Possible answers: crude oil or oil

100

Why are animals unable to live in biomes that have been heavily mined?

Producers are unable to grow, so animals cannot find food.

100

What natural hazard occurs in sloped areas when there is too much water for the soil to hold?

Landslide

200

Seeds may travel into a damaged ecosystem in what two ways?

Possible answers: by traveling in the wind or on animal fur

200

Healthy ecosystems can experience _______ changes that organisms can adjust and adapt to.

minor

200

How many gallons of oil were spilled into the oceans and onto the beaches of Prince William Sound?

11 Million Gallons (40 Million L)

200

Farmers may harm ecosystems when they use chemicals to kill __________ .

Insects

200

What were the two causes of the fires in Yellowstone National Park in 1988?

Possible answers: hot, dry weather; lightning; careless people

300

Which organisms of the food chain must reenter damaged areas first?

Producers

300

What invasive species came to Australia in 1859?

European rabbits

300

Name two kinds of animals that were affected by the spill.

sea birds, otters, seals, fish, whales

300

One way humans affect ecosystems is by building homes, _______, and businesses.

roads, schools

300

An endangered species is one that might ________ from the earth.

disappear

400

How can forest fires help pinecones increase pine tree populations?

Extreme heat cracks pinecones open and releases seeds so new pine trees can grow.

400

What word means a special role that an organism plays in its ecosystem?

niche

400

What type of whale had still not fully recovered from the spill as of 2014?

killer whale, orca

400

What is one human activity that can have positive effects on ecosystems?

Planting trees, establishing parks, recycling

400

God promises that the earth will not be ___________ before the return of Jesus.

destroyed

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