By injecting dead cells of the disease into the body, the body can analysis what it is supposed to be fighting off before it gets the active diseases. So if the body does actually get the disease then it knows how to fight it off and can have a better chance at doing it.
Answer:
Proteins/fats
Explanation:
Which of the following classes of molecules produces the most energy per gram?
There are four classes of biological molecules: fats, carbohydrates, proteins, and nucleic acids. Of these, fats produce the most energy per gram at a whopping nine calories per gram.
Marco knows the medicine is safe because it was prescribed to him by a doctor.
Answer:
The starch in the plant was removed
Explanation:
When a plant is placed in a dark cupboard for 24hrs it won't receive any sunlight meaning it won't photosynthesize. This results in the plant using up it's stored starch for growth. It is at this point where one can test if sunlight is necessary for photosynthesis to take place. The answer to this will then be, yes.