The cystic fibrosis transmembrane conductance regulator (CFTR) protein helps to maintain the balance of salt and water on many surfaces in the body, such as the surface of the lung. When the protein is not working correctly, chloride -- a component of salt -- becomes trapped in cells. Without the proper movement of chloride, water cannot hydrate the cellular surface. This leads the mucus covering the cells to become thick and sticky, causing many of the symptoms associated with cystic fibrosis.
They share some of the same matter.
In the DESERT Biome , which of the following could be an example of commensalism?
A. A gopher snake occupies a burrow made by the desert rat.
B. A chipmunk takes shelter in an oak tree and is protected from predators and in return, disperses seeds around the area.
C. Wasps lay eggs in the case of eggs laid by the praying mantis. When the wasp eggs hatch, the larvae feeds on the eggs of the praying mantis.
D. A tapeworm gets into a moose and causes harm
E. A fox follows a caribou that removes the snow covering to get to the lichens under the soil. The fox then hunts the animals that have been uncovered.
<u>F. A desert coyote eats fruit and in return disperses the seeds of the fruit around through its scat (poop).
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