Your lungs. The lungs control your ph balance by releasing carbon dioxide
the answer is A.) Heart rate
is a simple and practical method for monitoring the amount of work your heart is doing at any given time
Answer: He is important Because of 3 things
Explanation:
The 4 things are
1: He is a famous companion of Prophet Muhammad (SAW)
2: He is the 2nd caliph after Abu bakr (RA)
3: Muhammad (SAW) gave him a nickname it was al farooq, which means the one who can tell between right and wrong.
4: He was promised paradise
Extra
Umar was the 2nd caliph
He was not a muslim at the begining he was bad to the muslims but before the hijra (Migration) With hamza (RA). Umar was realated to prophet muhammad because his sister hafsah married Muhammad (SAW).
And his other sister married the famous companion said ibn zayd.
He was the best companion after abu bakr (RA).
He with other ten people were promised paradise
Answer:
C
Explanation:
The esophagus has an empty lumen with stratified squamous epithelium contacting the lumen and deep to the epithelium is a basement membrane and then two layers of smooth muscle. The esophagus is a long muscular tube that connects the pharynx to the stomach. This structure keeps food and secretions from going going down the windpipe without absorbing the products. It is the least complex section of the digestive tube which plays the role of conveying boluses of food from the pharynx to the stomach. Absorption in the esophagus is virtually absent.
