Suggest one reason why the population of the woodland caribou has declined in the united states?

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

Approximately how many times does an average human heart beat in a lifetime?

10. which person would be the least effective host for a pathogen? an older person a young athlete a smoker a sick person