Alternative energy sources are those that do not deplete natural resources and do not harm the environment.
Options A, B, and C are all fossil fuels, which we know can be depleted and harm the environment.
The only valid option here is D, Geothermal energy.
Geothermal energy is both renewable and environmentally friendly.
Answer:
starch
Explanation:
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The cell wall because of the fact it is present in the plant cell and not in the animal cell
Flagella and cilia have the exact same structures and functions, and the names merely indicate how many are present on a given cell. When found singly or in a pair, these cell protrusions are called flagella<span>.</span>
The Main Organs include: Salivary, glands,Zero esophagus, Sstomach, Small intestine,Large Intestine and Rectum
