In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Question: What type of transport requires no energy and occurs when substances move from areas of higher to lower concentration? Answer: passive transport
Passive transport requires no energy and occurs when substances move from areas of higher to lower concentration.

Question: What type of cell layer do flatworms have? Answer: mesoderm
Mesoderm type of cell layer do flatworms have.

Question: Mating with no strong pair-bonds is called? Answer: promiscuous

Mating with no strong pair-bonds is called promiscuous mating.