Yes the pulmonary valve. It opens to allow blood to be pumped from the right ventricle to the lungs (through the pulmonary artery), where it will receive oxygen. It's purpose is to prevent the back flow of blood from the pulmonary artery to the right ventricle.

GCSE English and Maths would be essential.

At this point Miranda is deeply in love with Ferdinand, and the sight of him doing something so menial as carrying logs, genuinely upsets her. She is generally portrayed as a gentle character, with a lot of compassion. This is sometimes presented as her being meek, but there are times in the play she shows strength and forthrightness. Such as when she proposes to him later in the play.

In what context Myeshim? His character at the beginning? We can see that he is passionate from the beginning as he is pining for Rosaline, though it is a more heady infatuation as he forgets about her as soon as he sees Juliet. He can also be described as quick witted, but lets his emotions control him. Anger not just love.