Which of the following statements about cancer is TRUE? 1. Cancer is caused by exposure to bacteria in the environment.
2. By eliminating all cancer-causing environmental factors, a person can avoid getting cancer.
3. Cancer is not a single disease, but many diseases that have some common characteristics.
4. A person can catch cancer from a close family member who has it.

3

Explanation:

Some cancers are caused by exposure to viruses, not bacteria, in the environment. A genetic mutation for certain cancers may be passed down in families, but people can’t “catch” cancer from one another. Even if a person eliminates all environmental factors known to cause cancer, that person might still develop cancer because of an inherited mutation.

i agree d is most definitely correct!

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.