TASK DEFINITION: In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.
PROBLEM: Sentence: Muscles need stimulus to contract. Question: What do muscles need to contract?

SOLUTION: stimulus

PROBLEM: Sentence: You call the movement of a substance from an area of a higher amount toward an area of lower amount diffusion. Question: What do you call the movement of a substance from an area of a higher amount toward an area of lower amount?

SOLUTION: diffusion

PROBLEM: Sentence: Sympatric speciation is when a new species arises without geographic separation. Question: What is it called when a new species arises without geographic separation?

SOLUTION:
sympatric speciation