Correct Answer is A. They were able to increase their productivity due to the popularity of tractors.
Mineral crystals are divided into six mineral crystal systems based on geometry and angles between axes.Crystals can be didvided into categories of habit the crystals is the appearance in nature.
Cell definition: the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed.
Cytology definition: the study of cells as fundamental units of living things.
Answer:
to anchor the plant to the ground. equalizing osmosis in the plant and feeding water up through the roots.
That statement is false. Bacteria are single-celled organisms.