Answer :
Answer:
3.
Explanation:
Since the snake was introduced, many species were killed off which severely impacted food chains and webs
Answer:
3. A disruption of food chains and food webs in Guam's ecosystems.
Explanation:
In the food chain, if one species goes extinct, other species go extinct too. If the bird species in that area goes extinct, animals that eat birds will probably go extinct or the number of surviving animals will drop. Things that the birds eat may thrive because nothing's there to eat them. This causes overpopulation.