There are two events,
A: the selection belongs to the specific species, or
A' : the selection does not belong to the specific species.
It is usually acetic acid that nature likes to make lipids out of.
The answer is D. our body generates new cells
Fossils records the past by the very beginning of all living organism if there was wayer at one time by a fish fossil or if it was a dry land with a plant fossil
The air diffuses into the capillaries surrounding the alveoli.
2. The pulmonary veins carry oxygenated blood to the heart.
3. Air enters the bronchioles in the lungs and reaches the alveoli.
4. The capillaries join together to reach the arteries, transferring the oxygen.
5. The oxygen-rich blood moves from the aorta and reaches the kidneys through a series of blood vessels.
6. The left atrium fills with oxygen-rich blood and contracts to fill the left ventricle.
