The outer ring is is the ever first ring but the inner ones tell if it’s old or not.
The two gasses that make up 99% of the earth's atmosphere are nitrogen and oxygen.
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Answer:
It contains the genetic instructions for every function of the cell.
Explanation:
Answer: D
Explain:
For example, an unopened soda in a bottle has a uniform composition and is a homogeneous mixture. Once you open the bottle, bubbles appear in the liquid. The bubbles from carbonation are gasses, while the majority of the soda is liquid. An opened can of soda is an example of a heterogeneous mixture.
Answer:
D
Explanation:
Larger organism increases more in volume than area. That's why larger organism uses respiratory systems or organs and systems instead of simple diffusion for removal of waste and absorption of nutrients.
