Answer:
The small intestines are well adapted for absorbing nutrients during digestion by: being very long, having villi and microvilli that increase surface area, using muscular contractions to move and mix food, and receiving and housing digestive enzymes and bile that help the breakdown of food.
Explanation:
Answer: If a teen drinks and drives, the teen would lose control over the car and crash.
Explanation:
Heel pain is not usually caused by a single injury, such as a twist or fall, but rather the result of repetitive stress and pounding, of the heel. Common causes of the heel pain include: A heel pain sufferer commonly feels pain either under the heel (plantar fasciitis) or just behind it (Achilles tendinitis).
Balance is maintained by secreting bicarbonate ions or by absorbing them.
<u>Explanation:</u>
- Chemical buffers : fraction of a second , ties up excess of H+ or bases temporarily.
- Respiratory buffers: within a minute , maintaining or reducing the level of CO2.
- Renal buffers: hours or takes even days, moves away metabolic acid and excess of base.
