Question

In which situation will primary succession most likely occur?

Answer 1

In which situation will primary succession most likely occur?(1 point)
Responses

A disease kills off most of the plant species in an ecosystem.
A disease kills off most of the plant species in an ecosystem.

Trees in a forest ecosystem are cut down for logging.
Trees in a forest ecosystem are cut down for logging.

A small pond dries up, leaving behind moist soil.
A small pond dries up, leaving behind moist soil.

Sheets of ice that once covered an area melt away, exposing a layer of rock.
Sheets of ice that once covered an area melt away, exposing a layer of rock.

Answer 2

Which statement describes a difference between primary and secondary succession?(1 point)
Responses

Secondary succession occurs over a shorter time period than primary succession.
Secondary succession occurs over a shorter time period than primary succession.

Primary succession can more easily be observed than secondary succession.
Primary succession can more easily be observed than secondary succession.

Secondary succession supports a more limited number of organisms than primary succession.
Secondary succession supports a more limited number of organisms than primary succession.

Primary succession supports a greater variety of organisms than secondary succession.
Primary succession supports a greater variety of organisms than secondary succession.

Answer 3

Primary succession is most likely to occur in situations where there is no pre-existing soil or organic matter, such as on bare rock or sand dunes, as well as in areas that have been disturbed by natural events such as volcanic eruptions, landslides, or glacial retreat.

Answer 4

Sheets of ice that once covered an area melt away, exposing a layer of rock.

Answer 5

Primary succession supports a greater variety of organisms than secondary succession.