single-celled
in single-celled organisms they perform activities such as eating and reproducing in just one cell.
Answer:
the variety of life in the world or in a particular habitat or ecosystem
Explanation:
you silly goose
A burn is damage to your body's tissues caused by heat, chemicals, electricity, sunlight, or radiation. Scalds from hot liquids and steam, building fires and flammable liquids and gases are the most common causes of burns. Another kind is an inhalation injury, caused by breathing smoke.
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the answer is four hope this helps :)