To understand the phenomenon of biological cell
To understand which principal occurs
To know the whose are reactant and what makes product
Hope for brainliest mark
During a lunar eclipse, the Earth gets in between the sun and the moon
Touch,pressure,temperature, and pain.
Answer:
Amount of food. She needs to varry the amount of plant food among the different groups so that she can tell how the amount of plant food affects number of beans produced.
