A scientific theory is a broad explanation for events that is widely accepted as true. Evolution is a change in species over time. Evolution occurs by natural selection. The cell theory states that all living things are made up of cells, and living cells always come from other living cells.
When there is too many lets say, lions and not enough zebra to eat then some of the lions will die from lack of food
Pain is more defined as a symptom
Answer:
electromagnetic energy
Explanation:
sunlight is a radiation, from the electromagnetic spectrum we have visible light and ultraviolet radiation whose source is the light
Answer:
notochord, a dorsal hollow nerve cord and pharyngeal slits.
