Importance of channel proteins and carrier proteins

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.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above