Your body used the respiratory system (lungs)
<span>Extinction occurs when a CS is no longer paired with a US.
Hope this helps :)</span>
Answer:
Mitochondria
Explanation:
An egg contributes one half of the chromosomes as well as cytoplasm and cellular mechanisms required for the cell to thrive and replicate. Mitochondria are especially important to the embryo and are only passed from mother to child via the egg (or oocyte). Sperm are basically just DNA packets.
Explanation:
The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.
