Earthworms, like the one seen here, live in soil. bennie wondered how changes in the moisture content of the soil would affect the movement of worms. he wanted to design an experiment to test his idea. what would be bennie's manipulated variable in the experiment?

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes