A plant evolves a high level of poison that enables it to defend itself against insects. soon an insect that prefers to eat this plant evolves an enzyme that breaks down the poison. this is an example of
adaptation? maybe its more narrow than that
I agree I'd say adaptive evolution .
Well there are a few terms this could apply to - so I would strongly suggest consulting your lecture or class notes (do you have any?). There is co-evolution (what does this suggest to you?), it may not be this option as coevolution isn't necessarily an "evolutionary arms race", like in this example. It could also be an example of the "red queen hypothesis" - which it might be a good idea for you to take a read of: http://www.indiana.edu/~curtweb/Research/Red_Queen%20hyp.html http://en.wikipedia.org/wiki/Red_queen_hypothesis
For the record it's coevolution
Join our real-time social learning platform and learn together with your friends!