What is intrasexual selection and intersexual selection?

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from

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.

If 360 joules of work are needed to move and create a distance of 4 m what is the weight of the crate