Q. 13

Assertion (A): Ma A. Both ‘A’ and ‘R’ are true and ‘R’ explains ‘A’.

B. Both ‘A’ and ‘R’ are true but ‘R’ doesn’t explain ‘A’.

C. ‘A’ is true but ‘R’ is false.

D. A is false but ‘R’ is true.

Answer :

Mammalian heart is called myogenic heart because in them the setting of rhythm is done by specialized muscle bundles called pacemaker. they are highly specialized for conducting and generating the impulses. The heart muscles contract and relax without receiving impulses from nervous system, thus mammalian heart is called myogenic heart.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Case Study Qs.Case Study Qs.Case Study Qs.43 mins
Similarity - Apply it like a ChampSimilarity - Apply it like a ChampSimilarity - Apply it like a Champ45 mins
Reflection of light-2Reflection of light-2Reflection of light-238 mins
Outcomes of DemocracyOutcomes of DemocracyOutcomes of Democracy43 mins
Refraction of Light-2Refraction of Light-2Refraction of Light-241 mins
Heating Effect of Electric CurrentHeating Effect of Electric CurrentHeating Effect of Electric Current40 mins
Application of Trigo Important QuestionsApplication of Trigo Important QuestionsApplication of Trigo Important Questions44 mins
Trigonometric Ratios of Specified AnglesTrigonometric Ratios of Specified AnglesTrigonometric Ratios of Specified Angles38 mins
Sum of n Terms of APSum of n Terms of APSum of n Terms of AP56 mins
Arithmetic Progression and 'nth' Term of APArithmetic Progression and 'nth' Term of APArithmetic Progression and 'nth' Term of AP55 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Fill in the emptyTamil Nadu Board - Science

Assertion (A): MaTamil Nadu Board - Science

Mitral valve is fTamil Nadu Board - Science

Mention the varioTamil Nadu Board - Science