Explanation:
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells.
cells are bigger than atoms. We can see cells with a microscope. Just as atoms have smaller parts called protons, neutrons, and electrons, cells have smaller parts, too. When you look at cells with a powerful microscope, you can clearly see hundreds of them.
D. DNA
All organisms contain dna
The first law. Planets orbit is an ellipse with the Sun at one focus.
Oceanography, geology, meteorology, astronomy, and environmental science
