Answer:
The fourth plant that receives pure water is the control group.
Explanation:
The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, in this case, <em>the different concentrations of salty water that each plant receives</em>. The control group provides a reference point. It must be selected from the same population of the treatment groups. Both groups must be similar in every variable that might influence the results, <u>except for the study treatment.</u>
I believe the antibody responsible for this is IgM. Antibodies are protective proteins produced by the immune system in response to the presence of a foreign substance called, antigen. They recognize and latch onto antigens in order to remove them from the body. IgM is the most abundant antibody that is found in all body fluids and protects against bacterial and viral infections. The IgM that is found mainly in the blood and lymph fluid is the first antibody to be made by the body to fight a new infection.
Answer:
Catalase is an enzyme in the liver that breaks down harmful hydrogen peroxide into oxygen and water. When this reaction occurs, oxygen gas bubbles escape and create foam.
Yellow Colonies: <span>Staphylococcus aureus (gram-)
Pink Colonies: MacConkey agar (gram+)</span>
Answer:
Tomatoes have a rich flavor, high water content, soft flesh which breaks down easily, and the right composition to thicken into a sauce when they are cooked (without the need of thickeners such as roux). All of these qualities make them ideal for simple and appealing sauces
Explanation:
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