Answer:
The pacemaking signal generated in the sinoatrial node travels through the right atrium to the atrioventricular node, along the Bundle of His and through bundle branches to cause contraction of the heart muscle.
Answer:
combine the two definitions :)
Explanation:
you can combine light+putting together to help define the word photosynthesis as: put together through light, or built/grown though light.
The reason why the eggs of silkmoth is stored below 18c in winter season is to keep it enclosed so it won’t hatch and die sooner!.
