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

[EX Q]: What animal group can be found in every environment on earth, but primarily in the warm and moist tropics?
[EX A]: insect

[EX Q]: The lifecycle of an ascomycete is characterized by the production of what during the sexual phase?
[EX A]: asci

[EX Q]: A structure composed of two or more types of tissues that work together to perform the same function is called?
[EX A]:
organ