answer for this question is A
If a test tube has been used, and its contents is supposed to be disposed, carefully pour the contents to the lavatory with a confirmation of a professional (as it may damage the pipelines of the sink) and ensure that there are no splashes created that can contact the human skin. Wash the test tube thoroughly and let dry.
Carbon atoms got 4 surface electrons which makes them in the middle regarding the electrical surface charge and they can make a maximum relations of 4
<span>The appropriate response to the question is parenchyma. The parenchyma is the utilitarian parts of an organ in the body. This is as opposed to the stroma, which alludes to the basic tissue of organs, specifically, the connective tissues. It is a functional part of animal's body. </span>
Answer:
an enzyme is a protein which is used to break down food
Explanation:
