Answer:
In this experiment, you changed the number of worms in the soil and measured the effect of this change on the plant growth in the population.
The independent variable was the number of worms, and the dependent variable was the plant growth.
Explanation:
right on edge!
Their function is to prevent water getting out and stopping
one billion bacteria, several yards of fungal filaments, several thousand protozoa, and scores of nematodes.
The statement that is pat of the cell theory is D) Cells come from pre-existing cells.
In waves because sound echoes. Waves are the only form of energy that can echo.
