Answer:
Puberty is when a child's body begins to develop and change as they become an adult. Girls develop breasts and start their periods. Boys develop a deeper voice and facial hair will start to appear. The average age for girls to begin puberty is 11, while for boys the average age is 12.
Explanation:
Answer : (b). 105 bpm
Explanation :
given that,
Age = 40 years-old
Resting heart rate = 75 bpm
We know that,
Maximum heart rate = 220- Age
Maximum heart rate = 220-40 = 180 bpm
Heart rate reserve = Maximum heart rate - Resting heart rate
Heart rate reserve = 180 bpm - 75 bpm
Heart rate reserve = 105 bpm
Hence, this is the required solution.
(I know this bc I've done this question.)
Hope This Helps! Have A Nice Day!!
Loud noise can damage cells and membranes in the cochlea. Listening to loud noise for a long time can overwork hair cells in the ear, which can cause these cells to die. The hearing loss progresses as long as the exposure continues. Harmful effects might continue even after noise exposure has stopped.
Answer:
The official definition for cardiorespiratory endurance is "Cardiorespiratory fitness refers to the ability of the circulatory and respiratory systems to supply oxygen to skeletal muscles during sustained physical activity."
Based on that, the answer is A.
*<u><em>Just for citation purposes, the definition is from Wikipedia.</em></u>
Answer:
See explanation
Explanation:
The tympanic membrane or eardrum serves as a divider between the outer ear and the middle ear structures. It is gray-pink in color when healthy and consists of three very thin layers of living tissue. The eardrum is very sensitive to sound waves and vibrates back and forth as the sound waves strike it.
