The fossil record indicates that the earliest hominids most likely originated in "Africa," since this is the location from which humans eventually migrated to other locations.
Air would go through the trachea, then the bronchi, the bronchioles, and then the alveoli.
Adjacent cells can signal others by direct contact, while nearby cells that are not touching can communicate by the release paracrine signals.
Hope this helps,
Davinia.
Answer:
Explanation:
yes its 3 foxes per square kilometer
