Answer:
Tobacco weakens the immune system.
Explanation:
Answer:
Normal drug use is meant by being prescribed by your doctor to make it legal to use, illegal drug use can get you arrested
Explanation:
your dumb.
Biology is the study of living things or organism. It is a science of life. And it is a great affect of human development because and humans possesses both genetic and environmental surroundings. Genes are the first inheritance in all creatures that effects the appearance or purpose of an organism in definite manner.
The older you get the more your brain will develop... Right, but, when your body hits a certiant age that all goes in reverse. This may not be as bad if you live a healthy lifestyle because then your body is ready and open for when that age comes so that memory loss is slower. but if you are not active at all you will cause heart problems, tourmers, etc. witch can develop memory loss faster
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Answer:
the maximum heart beat is 196 beats per minute
Explanation:
To calculate your heart beat divide your age by 220
