Answer:
C. The Liquid which bubbles form is vinegar
Explanation:
Bubbles are one of the signs of a chemical reaction when there's bubbles there's gas.
Answer: AV node will takeover the function of SA node if it’s not functioning, but definitely at a slower rate than SA node.
Explanation:
Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood.24 Jan 2020
This should help you
(Really hope it does an plss mark me as brainliest)
Answer:
an enzyme
Explanation:
The picture is about substrate complex which is about emzymes