What type of stretching slowly lengthens a muscle to a point at which further movement is limited and you hold this position for a fixed period of time?

Hemoglobin is the compound in red blood cells that carries oxygen to the body. the distribution of hemoglobin in women in g/dl of blood is approximately normally distributed with mean 14 and standard deviation 1. too little hemoglobin, and you're anemic. 2. too much, and (unless you live at high altitudes), you can have other problems.

Which organelle breaks down sugar molecules that supply energy to the cell ?

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?