<span>Lungs take in air, and diffuse (absorb) air into the capillaries of the blood. However, this process is two steps, one for inhalation and one for exhalation. Diffusion takes place in both processes, and serves different purposes. One is to absorb oxygen, the other is to rid co2.</span>
The ocular<span>, or eyepiece </span>lens<span> that one looks into.</span>
Answer:
B.Lipid
Because With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol
<span>Lithosphere, I know this because I got it right on usatestprep</span>
The theory is the Continental drift, the super-continent is called the Pangaea.