Answer:
b outer ear
Explanation:
The auricle (pinna) is the visible portion of the outer ear. It collects sound waves and channels them into the ear canal (external auditory meatus), where the sound is amplified. The sound waves then travel toward a flexible, oval membrane at the end of the ear canal called the eardrum, or tympanic membrane.
Answer:
the salivary will break down the protein/food in the stomach.
Explanation:
Answer:
5km
Explanation:
you don't want to wear yourself out, and be super sore. so 5km would be the perfect distance. 3km would not be long enough for a good work out.
The capacity of the circulatory and respiratory systems to supply oxygen to skeletal muscle mitochondria for energy production needed during physical activity.
I can help you when you post the different answers they give you if it's a multiple choice if not then I can work with that. I would really like to have the multiple choice if it's possible. If not its fine.
