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 planet is the easiest to observe? Answer: mars
Mars planet is the easiest to observe.

Question: What do you call the movement of molecules across a membrane without the input of energy? Answer: passive transport
You call the movement of molecules across a membrane without the input of energy passive transport.

Question: What is one way of classifying organisms called? Answer: clade

A clade is one way of classifying organisms.