Question 1 A)A pioneer species(1 point) Responses hunts other species. hunts other species. outcompetes native species. outcompetes native species. is the first species in a barren area. is the first species in a barren area. requires more shade than established species. requires more shade than established species. Question 2 A)After an extreme disturbance, what is the first thing to form in an ecosystem?(1 point) Responses the plant community the plant community rock rock a group of lichens a group of lichens sand sand Question 3 A)The melting and subsequent retreat of glaciers is a long process that may take centuries. Why is something so slow considered an extreme disturbance?(1 point) Responses They strip away trees and destroy everything as they move. They strip away trees and destroy everything as they move. They move giant boulders and change the physical shape of the landscape. They move giant boulders and change the physical shape of the landscape. They will never grow back after they melt. They will never grow back after they melt. They leave behind bare rock with no established ecosystem. They leave behind bare rock with no established ecosystem. Question 4 A)Currently, which event is having the greatest effect on the entire interconnected ocean ecosystem?(1 point) Responses plastic pollution plastic pollution tsunami tsunami oil drilling oil drilling hurricane hurricane Question 5 A)Volcanic eruptions can ___(1 point) Responses draw animals to the area. draw animals to the area. increase biodiversity. increase biodiversity. add nutrients to the surrounding soil. add nutrients to the surrounding soil. drastically alter the ecosystem. drastically alter the ecosystem.

The correct answers for the questions are:

1) A pioneer species is the first species in a barren area.

2) After an extreme disturbance, the first thing to form in an ecosystem is a group of lichens.

3) The melting and subsequent retreat of glaciers is considered an extreme disturbance because they leave behind bare rock with no established ecosystem.

4) Currently, plastic pollution is having the greatest effect on the entire interconnected ocean ecosystem.

5) Volcanic eruptions can drastically alter the ecosystem.