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?

Moisture of the soil

Explanation:

The manipulated variable would be moisture of the soil. Bennie will change the moisture content of the soil to investigate to see of the worm will move in a certain moisture. The movement of the worm is the responding variable.

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

happy to

pls mark as brainliest

answer; i believe that the correct answer is(d) nondisjunction during meiosis;