Bodies need fat to protect organs and to keep the body warm
Bodies need carbohydrates because of the glucose they contain (fuel)
Nucleic acid makes up DNA
Water helps regulate temperature
All of these are needed by the body
Answer:
Changing their external environment
Explanation:
they are essential to its health. As dead wood is decomposed it aids new plant growth by returning important nutrients to the ecosystem.
Answer:
A susceptible person is someone who is not vaccinated or otherwise immune or a person with a weakened immune system who has a way for the germs to enter the body. For an infection to occur, germs must enter a susceptible person’s body and invade tissues, multiply, and cause a reaction.
It is a controlled experiment as everything is the same apart from one variable
