<span>DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.</span>
Mass and distance affect gravitational force
Pesticides may end up in water sources (such as rivers and the sea), as a consequence they end up in the food chain. Not only this, human water systems could be affected, resulting in humans ingesting these pesticides.
Pesticide presence increases as you go up the food chain because more food will be consumed (e.g: The larger fish may eat several small fish who are contaminated with the pesticide).
Example:
Algae (absorbs pesticide)—> small fish —> Larger fish —> Human
Hope that helped <3
Eukaryotic cells have one nucleus inside a membrane.
Prokaryotic do not have a membrane bound nucleus nor <span>mitochondria.
Also, please note the following:
Mitochondria is the powerhouse of the cell
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The abbreviation for adenosine triphosphate is ATP
