Clarify why a diagram of evolution looks more like a bush than a straight line.

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.

What do animals wth echolocation have in common other than echolocation

Identify the missing parts of the carbon cycle