TASK DEFINITION: Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.
PROBLEM: Fact: marine and benthic creatures lack respiratory and excretory systems. 
Question: what creatures lack respiratory and excretory systems?

SOLUTION: marine and benthic.

PROBLEM: Fact: pines have a positive impact on an ecosystem. 
Question: what has a positive impact on an ecosystem?

SOLUTION: pines.

PROBLEM: Fact: A plant requires something that is a compound of hydrogen and oxygen for survival. 
Question: For survival, plants require a compound made of what?

SOLUTION:
Hydrogen and oxygen.