Currently mine is 73! Most experienced athletes have lower than average resting BPMs. Healthy and skilled athletes have an average of 40 BPM. Hope this helped!
Social effects: Abusive or neglected relationships, isolation, negative emotions and attitudes expressed, mistrust- fight or flee
Cultural effects: Wide spread depression, Crime rates increase, Ads of negative behavior through media, morals decrease
please vote my answer brainliest. thanks!
Answer: A
Explanation: The blood–air barrier (alveolar–capillary barrier or membrane) exists in the gas exchanging region of the lungs. It exists to prevent air bubbles from forming in the blood, and from blood entering the alveoli. ... The barrier is permeable to molecular oxygen, carbon dioxide, carbon monoxide and many other gases.
