Chordates are called chordates because they have a spinal chord, so the answer is C.
At the same time, carbon dioxide molecules diffuse rapidly out of the red blood cells<span>, down their concentration gradient, and into your lungs. When </span>water<span> molecules </span>move <span>freely </span>across a cell membrane<span>, the process is called OSMOSIS , which is just a special type of simple diffusion.</span>
After pollination and fertilization following changes occur in a flower: The petals, stamens, style and stigma of the flower fall off. Sepals dry up and hold the ovary. The ovules confined in the ovary develop into seed
