Answer:d.) protozoa
Explanation:protozoa is a unicellular eukaryotic organism that belongs to kingdom protista. Protozoans depends on other organism for there food because they do not produce there own food. Some protozoa can be parasitic in nature.
Example of protozoa is amoeba.
No.... the weight of a substance is the mass of the substance multiplied with the acceleration due to gravity on it.
<span>Cells with similar structure and function merge to form tissues such as epithelial or connective.
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Copernicus' model: "Sun-centered," or "heliocentric"
Copernicus thought that the planets orbited the Sun, and that the Moon orbited Earth. ... Copernicus was correct about some things, but wrong about others. The Sun is not in the center of the universe, and it does move, as do the stars.
