🎴 Flashcard Mode
Respiration in humans - class-VIII
Card1 / 24
Mastered0
Review0
QuestionClick to flip
Rate and depth of
respiration shall increase when
AnswerClick to flip back
A
$CO _2$ concentration increases
💡 Explanation:
(b) Activity of respiratory centres is directly proportional to the level of free $CO _2$ in blood.