True or false magma that is low in silica usually forms light colored rocks

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.

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?