Blood pressure, exercise, emotional states (such as stress), body size, and caffeine all affect heart rate.
Answer:
D) to break down oxygen entering the respiratory system
Explanation:
Because the function of mucus in the nasal cavity is warm, moisturize and filter air entering
Vitamins are classified as either fat soluble<span> (vitamins A, D, E and K) or water soluble (vitamins B and C). This difference between the two groups is very important. It determines how each vitamin acts within the body. The </span>fat soluble<span> vitamins are soluble in lipids (fats).</span>
Answer:
Our auditory nerve then carries these signals to the brain. Also available: Journey of Sound to the Brain, an animated video. Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum.
Explanation:
