Cells need energy. Give reason?

What is the process of pulling apart an n2 molecule nevermind i got it

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.