Answer:
C. The sun
Explanation:
The sun provides energy for the plant to do photosynthesis. Since all animal species depend on plants qnd the sun helps the plants, the sun is the original source of energy.
D thought the cranial nerves that attach to it the spinal cord is involved in sensory and motor inner action of the head and neck
Answer:
Active site of an enzyme must be attached to a substrate
Explanation:
Active site of an enzyme must be attached to a substrate
Answer:
that looks complicated
Explanation:
please do not answer other's question if you don't know the answer
