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Which layer of the atmosphere protct earth's surface from being hit by most meteoroids?
Wiki User
∙ 14y ago
ozone layer
Wiki User
∙ 14y ago
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Why does penguins huddle?
To protct themselves.
How does a apis mellifera protct itself?
by using apis of paper
How does the pupil shrinking reflex protct the eye?
it makes the eye explode that is what it does
How do alien protct themselfitself?
Mainly by being imaginary, like unicorns and the Loch Ness Monster.
How to protct myself from being clawed by my cat when giving it a bath?
stop giving it a bath. Cats keep themsleves clean.
How do crayfish protect it self?
crayfish protct there self they hide in the sand and they have a hard shell and claws so most animals don't mess with them because there to difficult to eat
How do you say i will protct you always in Japanese?
You may say 'itsu made mo mamoru [yo/zo],' written:　いつまでも守るぞ
How can a vaccine protct you against a disease?
A vaccine injects you with a smaller, less lethal version of the disease so that your body can start to build up antibodies against it. Once your body is producing the antibodies, it can easily fight off the real disease should you get it.
What covers and protct arthropod's bodies?
The arthropod cuticle is made from significant amounts of chitin. Chemically this is a long-chain nitrogenated polysaccharide polymer, comparable to cellulose, which allows for hydrogen bonding between polymers for additional strength. By embedding in sclerotin and mineralizing it (for example, crustaceans mineralize it with calcium carbonate), arthropods achieve an advantage of gaining a greater toughness and less brittleness than minerals alone but being stiffer and harder than pure chitin. Not only does this cover and protect the body but provides it with structural rigidity, hence assuming the role of skeleton (an external or exoskeleton).
What are the functions of the mucous membranes lining the respiratory system?
I think that it is a smooth tissue to ease the passage of air, so I think that it has not a specific function for the respiratory system. However, this is not an answer from an expert. Since answers can be afterwards edited, please wait for another response. Wikipedia says the following about mucous membrane > Structure of the Mucous Membrane -The epithelium covering the mucous membrane differs in its character according to the functions of the part of the nose in which it is found. In the respiratory region it is columnar and ciliated. Interspersed among the columnar cells are goblet or mucin cells, while between their bases are found smaller pyramidal cells. Beneath the epithelium and its basement membrane is a fibrous layer infiltrated with lymph corpuscles, so as to form in many parts a diffuse adenoid tissue, and under this a nearly continuous layer of small and larger glands, some mucous and some serous, the ducts of which open upon the surface. In the olfactory region the mucous membrane is yellowish in color and the epithelial cells are columnar and non-ciliated; they are of two kinds, supporting cells and olfactory cells. The supporting cells contain oval nuclei, which are situated in the deeper parts of the cells and constitute the zone of oval nuclei; the superficial part of each cell is columnar, and contains granules of yellow pigment, while its deep part is prolonged as a delicate process which ramifies and communicates with similar processes from neighboring cells, so as to form a net-work in the mucous membrane. Lying between the deep processes of the supporting cells are a number of bipolar nerve cells, the olfactory cells, each consisting of a small amount of granular protoplasm with a large spherical nucleus, and possessing two processes-a superficial one which runs between the columnar epithelial cells, and projects on the surface of the mucous membrane as a fine, hair-like process, the olfactory hair; the other or deep process runs inward, is frequently beaded, and is continued as the axon of an olfactory nerve fiber. Beneath the epithelium, and extending through the thickness of the mucous membrane, is a layer of tubular, often branched, glands, the glands of Bowman, identical in structure with serous glands. The epithelial cells of the nose, fauces and respiratory passages play an important role in the maintenance of an equable temperature, by the moisture with which they keep the surface always slightly lubricated. As you see, the mucous membrane has many and important functions.
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