Answer:
Alveoli
Explain:
They are the workhorses of your respiratory system. You have about 480 million alveoli, located at the end of bronchial tubes. When you breathe in, the alveoli expand to take in oxygen. When you breathe out, the alveoli shrink to expel carbon dioxide.
One of the most common cause of hypersecretion of the endocrine glands would be tumors. Specifically, the presence a hormone secreting endocrine-cell tumor. Hypersecretion is when the gland is secreting too much of a hormone. Hope this helps.
The tubercle found on the neck of a rib articulates with a facet found on the TRANSVERSE PROCESS OF A THORACIC VERTEBRA.
The tubercle refers to a small, rounded projection found on the surface of bones while a facet refers to the small, smooth area on a bone.
What this statement is saying is that, the tubercle that is located at one end of the rib formed a joint with the thoracic vertebra.
Answer:
The answer is A.Primary succession
Explanation:
Primary succession is an ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life (because of recent lava flows, newly formed sand dunes, or rocks left from a retreating glacier).
