Assertion (A): The heart beats faster during exercise. ... | Science Class 7

Name: CREST Olympiads
Address: Office No. 234, Spaze iTech Park, Tower-B2, 2nd Floor, Sohna - Gurgaon Rd, Sector 49, Gurgaon, 122018, IN
Telephone: 9818294134

Science Class 7 Other

Asked by Y.JESSICA GEONA RAJ · HOME SCHOOL

Assertion (A): The heart beats faster during exercise.
Reason (R): The body needs more oxygen during exercise.

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+5, ask questions & climb the leaderboard!

A Both A and R are true, and R is the correct explanation of A.
B Both A and R are true, but R is not the correct explanation of A.
C A is true, but R is false.
D A is false, but R is true.