Which is essential for finding the biomass of spinach? . . a. to calculate the dry weight of the entire spinach plant. . b. to calculate the volume of the juice in the spinach leaves. . c. to calculate the wet weight of the spinach leaves and stem.

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

2. which is the last step in the scientific method?

What material did the moon come from?