Some steps in cell division are shown below: 1. number of chromosomes is reduced to half 2. the two chromatids of a replicated chromosome separate 3. sister chromatids pair up at the edges 4. haploid cells are created which of the following steps occurs during meiosis 1? step 1 step 2 step 3 step 4

In what cells is the human genome located?

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.

The part of the eye that closes and opens to let light in is .