Answer:
Oxygen is a chemical element that constitutes 21 percent of the Earth's atmosphere, that is capable of combining with all elements except some noble gases, that is active in physiological processes of almost all known organisms, and that is involved especially in combustion — see Chemical Elements Table.
Explanation:
hope it helps
good day (≧▽≦)
Answer: B. appealing... unappealing
Explanation:
Cells are the basic unit of all oranisms, they contain almost everything we need to survive. They form our organs and blood, etc. That are the building blocks for all life, whether the organism is single-cellular or multi-cellular.
I believe known as limbs. Hope I helped! ;) If you have anymore questions, just ask!
I think it’s coordination
