Someone help please will mark brainliest

1. a) The population would increase because of more wattle to eat

b) The population would increase because of more leafhoppers to eat

c) The population would increase because of more leafhoppers to eat

d) The population would decrease because of more predators to eat them.

2. Reefs are some of the most biologically dense habitats in the world, meaning that the destruction of the Great Barrier Reef would cause a domino effect throughout the food web. Because coral is a primary producer that also may double as a habitat for many fish species, their destruction is devastating to the whole ecosystem, from secondary producers all the way to consumers.

Explanation:

Sorry this went unanswered for so long, hope this helps :)