Layer D is the oldest because bottom layers form first and are covered by new rock layers.
Answer:
Properties of life include the use of <u><em>energy</em></u> to power an organisms activities.
Explanation:
Energy is the driving force which allows every cell to perform its functions. Organisms like humans tend to gain energy by the process of cellular respiration. Cellular respiration can be described as a process in which organisms make carbon dioxide and water from glucose (from food) and oxygen (from air). Huge amounts of ATP is also released during this process. In plants, the process of photosynthesis and cellular respiration supplies them with the energy sources.
D. He has an aerator that pumps bubbles into the tank
Answer:
You didn't give options to choose from so I'll just wing it.
Over-predation will most likely be the cause of the extinction of the butterflies
Explanation:
Since the birds are preying on them, their population will most likely go extinct because of the birds.
