Answer:
Genes are passed down, or inherited from a person’s parents.
A component called chromosome contains each gene’s instructions.
Any one of the 22 chromosomes that are not found on the X or Y chromosomes are called X-linked genes.
Explanation:
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Chest trap, i play soccer
It attacks the white blood cells, disabling them and making them unable to fight off diseases. People with HIV often die from small diseases such as the common cold because all of their white blood cells have been disabled and are unable to protect them.
Answer:
keep their heart and lungs strong and healthy,
become more flexible,
develop strong bones,
keep a healthy body weight,
lower the risk of several diseases and health problems,
improve their mood and self-esteem, and
do better in school
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Triglycerides, cholesterol and other essential fatty acids—the scientific term for fats<span>the </span>body<span> can't make on its own—store energy, insulate us and protect our vital organs. They act as messengers, helping proteins </span>do<span> their jobs. Hope this helps :)</span>
