My question is "spontaneously depolarise to trigger contraction of cardiac muscle. establishes the heart rate

The arrows indicate the direction of wind flow. which place experiences monsoons?

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds?

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans