Answer: on the exposed surfaces of epithelial cells? Microvilli increase the surface area of the cell, usually for absorption. The cells lining the small intestine have microvilli for that purpose. Cilia wave around to help move the external medium.
Explanation:
He could develop sickness as to a bad cold. His bones will then become fragile.
My guess is let him freeze his butt off then have his coat waiting at the door when he realizes he was wrong. It's called letting him learn from experience.
Answer:
Cyclic.
Explanation:
First, we need to know that major mood disorders are characterised by depression, but there are three types: depressive, manic and bipolar. Manic disorder refers to elevated moods, and depression is the opposite. So, mood disorders tend to be cyclic between these two and there is where bipolar moods comes arrive.