Which is an example of how the peripheral nervous system helps the body maintain O Muscles produce keratin so that hair can grow stronger.
O Sweat glands break down the food that is consumed.
O Muscles contract rapidly to produce heat on a cold day.
O The brain recalls information to help take a test.

Explain the causes and effect of damage to the genetic code.

How are fossils most commonly formed

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars