Answer:
The immune system is made up of a network of cells, tissues, and organs that work together to protect the body.
Explanation:
Out of all the choises
a. cells are the building blocks of life
b. cells all arise from pre existing cells
<span>c. cells are the basic living units of structure an function </span>
<span>d. all of above
</span>it would be d
Answer:
The answer is sunlight.
Explanation:
Sunlight is captured from the plants leaves and that energy is used to break down water into hydrogen and oxygen.
