Skin cells are together to provide protection and strength.
Answer:
keratin
Your nails are made of keratin
Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body.
Explanation:
In biotechnology, the process of introducing the foreing DNA into a cell by a virus is called transduction.Gene therapy is one of the purposes of this process.
Answer:
introduces substances into an environment
Explanation:
eutrophication is just a bunch of algae in a pond or source of water. pollution is bad materials in the air. smoke and algae are substances in an environment.
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