Adrainage basin is the area of land where surface water is drained downhill into a body of water. a divide is a. a man-made fence that is built at the top of a drainage basin. b. a line halfway down the slope of a drainage basin. c. the low ground where two drainage basins meet. d. the high ground separating two drainage basins.

Given that part of the definition of a geographical divide is that it's elevated above that which it's dividing, I'm going to say D.

Hope this helps!

The answer is D

Explanation:

The high ground separating two drainage basins

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.