Answer:
B
Explanation:
In the respiratory membrane, the compensation activity that takes is the elimination of CO₂ to adjust bicarbonate to carbonic acid it to its normal ratio of 20 : 1 by increase respiratory rate.
A vaccination can produce immunity to smallpox
Answer:
Kids 2-5: They can ride bikes, do jumping jacks, and they can do yoga with their parents or older siblings
Kids 6-7: They can also ride bikes, go running, they could swim (if they know how too), and they could also do some workout videos for kids online
Explanation
Answer:
protection and a mask
Explanation:
that virus is deadly and especially in a high risk groups, and it attacks lungs and nose and throat