A vaccine is a substance containing incomplete portions of a virus that produce an immune response when injected into the body. It <span>is a biological preparation that provides active acquired immunity to a particular disease. Hope this answers the question. Have a nice day.</span>
Animals likes the sun's energy. The sun supplies energy to plants to help them grow for animals. Animals eat the plants to get the energy they need.
Hope this helps!! ;))
Have a grat day!! <3
Whatd did she discover?? it doesnt make sense
Answer:
Chemical reactions convert reactants into products. In nonliving systems, the presence of a(n) catalyst allows the reaction to proceed very quickly and have a lower activation energy. In living systems, this functions is carried out by proteins called enzymes.