Answer is A. It cant be B because they are to close together and it cant be C because some of the seeds are also to close together. Hope this helps!! :)
A primary active transport process is one in which MOLECULES MOVE THROUGH TRANSPORT PROTEINS THAT HAVE BEEN ACTIVATED BY ATP.
This is because, energy, in form of ATP is needed for active transportation to take place.
Although "further disturbances" is pretty vague, both climate change and nonnative species will definitely have a potentially long term impact on an ecosystem
The answer is b. reptiles