Question

Which change would create a new ecosystem?



(1 point)
Responses

an introduced species
an introduced species

a yearly migration
a yearly migration

a dam flooding a valley
a dam flooding a valley

a lake freezing over

Answer 1

The change that would create a new ecosystem is **a dam flooding a valley**. This action would create a new aquatic environment and alter the existing terrestrial ecosystem, leading to the development of new habitats and species interactions, thus forming a new ecosystem.