Given a scientific question, generate a correct answer to it.

Ex Input:
Bog destruction in scotland is an example of the widespread loss of what kind of habitat?

Ex Output:
wetland

Ex Input:
What animal group can be found in every environment on earth, but primarily in the warm and moist tropics?

Ex Output:
insect

Ex Input:
What do you call a structure composed of two or more types of tissues that work together to do a specific task?

Ex Output:
organ