Answer:
the billions of cells that originate from one parent cell
Explanation:
I believe it would be the reptile kingdom!
Answer:
Protists are a diverse collection of organisms that do not fit into animal, plant, bacteria or fungi groups. While exceptions exist, they are primarily microscopic and made up of a single cell (unicellular), according to the educational website CK-12.
D
Because most air pollution is caused by the burning of fossil fuels burned in the home