Answer: Vaccines give you immunity to a disease without you getting sick first. They are made using killed or weakened versions of the disease-causing germ or parts of the germ (called antigens). For some vaccines, genetic engineering is used to make the antigens used in the vaccine.
Explanation: Vaccines greatly reduce the risk of infection by working with the body's natural defenses to safely develop immunity to disease.
Answer:mitochondrion
Explanation: They are membrane bound cell organelles that generates most of the chemical energy needed to power the cell’s biochemical reaction .
The is should be C, Im not 100% sure though...
Look up projects on prezi. https://prezi.com/b7z6_cxdp9bm/the-water-carbon-and-nitrogen-cycle/
https://prezi.com/ju-hbhzzc0hu/the-water-cycle-carbon-cycle-and-nitrogen-cycle/
Much of the water vapor and carbon dioxide in earth’s atmosphere is found in the troposphere.
