Question

Suggest one word for each of the following statements.
a). It refers to an ecosystem's ability to retain key functions and processes in the face of stresses or pressures by resisting and adapting to change.
b). This species is the one that, in relation to its biomass or abundance, has a disproportionately large impact on community structure.
c). A kind of foundation species because they alter their environment by building dams.
d). These species frequently operate by altering the environment in order to support the community's other organisms.

1. a) Ecological resilience, b) foundation species, c) beavers, d) keystone species
2. a) Ecological resilience, b) foundation species, c) keystone species, d) beavers
3. a) Ecological resilience, b) beavers, c) keystone species, d) foundation species
4. a) Ecological resilience, b) keystone species, c) beavers, d) foundation species