A control is a experimental variable that is kept constant or unchanged during an experiment. During a controlled experiment, the controlled variables are held constant to minimize or stabilize their effects on the subject, its unchanging state allows the relationship between the other variables being tested to be better understood.
An amino acid is a protein, there is 4 groups Carbohydrates, lipids, Proteins, sugars
Answer:
Recycle and dispose of trash properly. Marine debris can be harmful to coral reefs. ...
Minimize use of fertilizers. ...
Use environmentally-friendly modes of transportation. ...
Reduce stormwater runoff. ...
Save energy at home and at work. ...
Be conscious when buying aquarium fish. ..
Explanation:
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