Resiliency is the ability to withstand difficulties, so the answer is: the ability of an ecosystem to recover from damage
The purpose of the author is to save the reefs! so: to convince readers that practices that destroy coral reefs must be stopped
And the phrases that support safety are: more vitamin A (a crop was changed genetically to have more), "you can see" and "could help save" - those are part of the bigger argument and finally, also unsubstantiated risks - this shows that there is no proof for the risks and "more nutritious"- it supports the value of the modified food
Due to English punctuation eating is just an action where a drink is something like a soda and a action. A eat is not a meal or anything that can be consumed.
