This uses the suns energy instead of using fossil fuels. For instance solar panel.
Answer: Option D
Explanation:
Once the pathogen enters the body, it starts dividing and after a certain period of time the patients experience some sign and symptoms of illness.
The prodromal period occurs just after the incubation period. In this phase the pathogen keeps on dividing and the host begins to experience general symptoms and signs of illness.
This is a result of the activation of immune system of the body which results in the swelling, pain, soreness.
Theory I believe Hope it helps
Answer:
D
Explanation:
This is because food is needed in the border in order to supply adequate food and oxygen to the growth cells to stimulate proper growth and development, to repair worn out tissues and cells and also to aid in some sort of cell division which leads to growth