Which phrase describes the chromosomes by the end of prophase of mitosis?
a.
the chromosomes have stretched out.
b.
the chromosomes have separated at the centromere.
c.
the chromosomes are pulled to opposite sides of the cell.
d.
the chromosomes have coiled and become more compact.
plz

The correct answer is letter D. The chromosomes have coiled and become more compact. During this phase the mitotic spindle also starts to form and the to sister chromatids are already clearly seen going to opposite directions in a microscope.

20 times a minute is usually the average respritory rate of an adult. additionally the patient is breathing on his own, is clearly maintaining his airway, and is intaking a sufficient amount of air. you shouldn't use a bag valve mask, cpap, or other form of positive pressure ventilation, unless the patient has lost control of his airway, and is not breathing (apneic) or has rapid breathing or slow and shallow respirations. this patient would most likely and should be put on an non-rebreather mask or nrb attached to 100% high flow oxygen at 15 l/min. don't use a nasal cannula, as the amount of oxygen it provides is limited with a rate of 6 l/min.