Reflexes are some examples. The muscle automatically responds to a stimuli. I hope I helped!
They form muscles, speed up chemical reactions, and perform many other cellular functions. Nucleic acids are organic compounds that include DNA and RNA. DNA contains genetic instructions for proteins, and RNA helps assemble the proteins.
It converts sunlight energy into electricity energy.
Answer:
A. nucleus B. lysosome C. endoplasmic thing D. cytoplasm