Respuesta :
A species of frog slowly dies off because it cannot compete with the toads and lizards that share its ecosystem. This is an example of background extinction.
Answer:
The correct answer would be background extinction
Background extinction refers to the normal or natural extinction which is taking place in an environment.
It refers to the extinction of a species due to ecological factors or environmental changes.
For example, extinction caused by disease, competition, climate change, loss of habitat (due to natural calamity) et cetera.