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A catalyst is a substance that speeds up the rate of a chemical reaction.
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D. so the exchange of gases and nutrients can happen
All the above are correct statement of mRNA !!
It is transcribed from template stand ; moves out of nucleus ; take the gene info to ribosomes which is the site of protein synthesis !!
Correct answer: True
The coral reefs are made up of thousands of tiny animals called as polyps. These are related to anemones and jellyfish. It possesses a sac-like a body and an opening which is encircled by the stinging tentacles called as cnidae.
They use calcium and carbonate ions which are derived from the seawater to in order to make a hard, cup-shaped skeleton. It protects the soft and delicate body of the polyp.
Hence, the correct answer would be true
Answer:
Gas vibrate and move freely at high speeds.Liquid vibrate move about,and slide past each other. solid vibrate but generally do not move from place to place.