Question

Ecological succession that occurs in an area where no ecosystem existed before (such as bare rock with no soil) is called:

a. primary succession
b. secondary succession
c. ecological succession
d. keystone succession

Answer 1

Primary succession is the type of ecological succession that occurs in an area where no ecosystem existed before, such as bare rock with no soil.

Step-by-step explanation:

The correct answer is a. primary succession. Primary succession is the type of ecological succession that occurs in an area where no ecosystem existed before, such as bare rock with no soil. This process begins with pioneer species, such as lichens and mosses, that can tolerate harsh conditions and gradually break down the rock to form soil. Over time, more complex plant and animal species colonize the area and create a stable ecosystem.

Answer 2

d. Primary succession / secondary succession e. Genetic drift / primary succession. d. ... A predictable series of environmental changes occur in an ecosystem after a ... An area of bare rock outcrop is colonized by small lichens and mosses for ... Weed seeds will not disperse over a large enough area to colonize a prairie. a.