1. electrical signals travel toward the heart. 2. signal received by the atrioventricular node. 3.signal by the nodes in the atrium. 4.the atria contracts. 5. signal transferred to the ventricles. 6. the ventricles contract.
25% of offspring will be bb
I think the correct answer from the choices listed above is the first option. The male <span>reproductive system is different from other body systems in a way that </span>it isn’t necessary to vital signs. The vital signs are <span>Body </span>temperature, Pulse<span> rate, </span>Respiration rate<span> (rate of </span>breathing<span>) and </span>Blood pressure which does not include the male <span>reproductive system.</span>
It could be underneath a glacier.
Answer:
a
Explanation:
science is a systematical way to get a knowledge