Answer:
The light gray lines are showing the predicted change in temperature for the habitat. For example, in the salamander's column, it shows the predicted temperature range being from about 7.5-12 degrees. This means that the temperature will CHANGE about 7.5-12 degrees. Another example for the light gray bar is the tree frog's change. The gray bars are predicting the temperature change to be about 9.5 - 11.5 degrees.
The black lines are showing what temperature change the species can adapt to. For example, the tree frog's temperature change resistance is from about -5 - 2 degrees. The Red-tailed hawk's temperature change resistance is about -3 - 3.
A substance that posses equal number of both hydrogen ions and hydroxide ions in solution is said to be neutral. They do not display properties of an acid or base solely.
The pH is said to be at around 7.
A human needs approximately 2-5 percent of protein for the typical energy needed daily. Protein is one of the most important building blocks in the body. It helps the bones, muscles, skin, blood, and cartilage. A humans nails and hair are made of protein. The protein your body uses also repairs tissues and build new ones.