Firstly they are not membranes and they are villi's which increase the surface area during digestion
It breaks down lactose into the galactose and glucose. So the answer here is C.
Answer:
Most adult amphibians can breathe both through cutaneous respiration and buccal pumping though some also retain gills as adults.
Explanation:
Answer:
Air seal you attic so you keep outside air out and inside air in, get new energy efficient windows, replace old appliances so they take up less energy, keep your water heater warm so that you use less energy by heating up water, switch from incandescent lights to fluorescent lights. Add solar panels.
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Explanation:
