No they cant be mechanical because then something would have to generate their rays through the inventing of a machine.
Answer:
a fertilized egg- zygote
separation of two ends of an old cell- cytokinesis
union of egg and sperm- fertilization
egg-producing organ in lower plants- archegonium
Energy derived from food is used to create ATP, an energy-rich compound
Answer:
i would say good for you for makeing the right desicion
Explanation:
