Answer:
The preparation plan proposed below was based on the possible incidence of an earthquake in my region.
Explanation:
If an earthquake was predicted in the region where I live, my family and I would start a preparation plan that would keep us safe as follows:
First, if our region is prone to earthquakes, we would provide an anti-seismic reinforcement in the house, so that it would have more resistance. We would fix the furniture in its places and use anti-shatter film on all glass and windows. Then, we would stock water, food, medicine, dressings, batteries and flashlights in sufficient quantities to use for at least 4 days.
In addition, we would bring the community together for a meeting where we would give tips on how to prevent themselves and how to protect themselves during and after the earthquake.
Answer:
Yea.How are you...
Explanation:
Mark as brainliest if you want...
Structure and function of the villi is described below.
Explanation:
- Intestinal villi are small, finger-like projections that extend into the lumen of the small intestine.
- Each villus is approximately 0.5–1.6 mm in length (in humans), and has many microvilli projecting from the enterocytes of its epithelium which collectively form the striated or brush border. Each of these microvilli are much smaller than a single villus. The intestinal villi are much smaller than any of the circular folds in the intestine.
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Villi increase the internal surface area of the intestinal walls making available a greater surface area for absorption.
- increased surface area (in contact with the fluid in the lumen) decreases the average distance travelled by nutrient molecules, so effectiveness of diffusion increases. The villi are connected to the blood vessels so the circulating blood then carries these nutrients away.
Function :
- There, the villi and the microvilli increase intestinal absorptive surface area approximately 30-fold and 600-fold, respectively, providing exceptionally efficient absorption of nutrients in the lumen.
- There are also enzymes (enterocyte digestive enzyme) on the surface for digestion. Villus capillaries collect amino acids and simple sugars taken up by the villi into the blood stream. Villus lacteals (lymph capillary) collect absorbed chylomicrons, which are lipoproteins composed of triglycerides, cholesterol and amphipathic proteins, and are taken to the rest of the body through the lymph fluid.
- Villi are specialized for absorption in the small intestine as they have a thin wall, one cell thick, which enables a shorter diffusion path. They have a large surface area so there will be more efficient absorption of fatty acids and glycerol into the blood stream. They have a rich blood supply to keep a concentration gradient.
If you live in a cold climate, keep heat packs with you. Wear gloves and scarves. Don't use fingerless gloves. Wear layers of clothing.
