7th Grade 1.2.3 Quiz

Last updated over 3 years ago

10 questions

1

5

Ecological succession can begin when seeds are carried to bare areas by birds or the wind.

True

False

True

False

plants and grasses

bushes

bare rock

forest

a different type of biome emerges

a climax community comes into existence

primary succession occurs

secondary succession occurs

The algae use so much of the oxygen in the water that fish die, decay and add to the build up of soil

The growth of the algae causes pollution to increase.

The algae become soil

The presence of the algae encourages sediment to drop out of streams into the pond.

The end product of aquatic succession is a new _______  ecosystem.

A pasture gradually returns to a forested state. This is _______ succession.

After lava covers the land, _______ succession occurs.

Ecological succession can begin when seeds are carried to bare areas by birds or the wind.

True

False

Ecological succession in new areas of land with little or no soil is secondary succession.

True

False

Which stage has the most biodiversity?

plants and grasses

bushes

bare rock

forest

If an existing ecosystem is destroyed, ________.

a different type of biome emerges

a climax community comes into existence

primary succession occurs

secondary succession occurs

As eutrophication occurs, populations of algae grow. How does this speed up succession?

The algae use so much of the oxygen in the water that fish die, decay and add to the build up of soil

The growth of the algae causes pollution to increase.

The algae become soil

The presence of the algae encourages sediment to drop out of streams into the pond.