C)All DNA is made of the same components so there would be no difference.
Is the answer.
D.Elements continuously cycle between the physical environment and living organisms.
Ecosystem is encompassing all the life on earth in the physical environment that supports it. An ecosystem involves both the biological (plants, animals, human beings) and non-biological (land, water, soil, and atmosphere) community which interacts as a system. More importantly, the living things are very dependent on the abiotic community since it cannot survive by itself. Every animal, plant and human needs the primary physiological needs of water, food and shelter provided by the abiotic system. <span> </span>
I think its anaerobic respiration
Another element that is important to bones is calcium
Answer and explanation
Due to technical problems, you will find the complete answer and explanation in the attached files
