The correct answer for this is the last choice, D.
Answer:
I would think it would be the first one :)
"The natural predators and prey of arachnids in tropical ecosystems"
Explanation:
Because it's the only one that simply says 'arachnids' and not 'brown widow spiders', and instead of specifically saying 'Natural predators' it says 'natural predators and prey'
Good luck on your test! :)
Answer:
you get more responsibilities
Explanation:
D. The last one! Makes most sense! :D