exoskeleton
outer or external skeleton
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Exoskeleton
Most higher insects have two pairs of wings located on the second and third thoracic segments. Insects are the only invertebrates to have developed flight, and this has played an important part in their success.
Exoskeleton: A skeleton or supportive structure on the outside of an insect body.
Exotic: Introduced from another country or continent (e.g., introduced insect pest).
exoskeleton -- n. An external, often hard, covering or integument that provides support and protection to the body.
extinction -- When all the members of a clade or taxon die, the group is said to be extinct.
exoskeleton A hard, jointed, external covering that encloses the muscles and organs of an organism; typical of many arthropods including insects.
exothermic A reaction where the product is at a higher energy level than the reactants.
exoskeleton
A hard encasement on the surface of an animal, such as the shells of mollusks or the cuticles of arthropods, that provides protection and points of attachment for muscles.
exotoxin ...
exoskeleton - hard structure developed on the outside of, and giving support to, a body, such as the chitinous covering of an insect (Glossary of PM)
exotic - alien to the area; originating from elsewhere ...
exoskeleton
A skeleton present on the outside of an organism, as in Arthropods or Mollusks.
exponential phase
Rapid increase resulting in a J-shaped curve through time.
THICK EXOSKELETONS
What else makes crustaceans so special? Their exoskeleton is very special. Some of the parts have actually fused together to form one piece. If you look very closely, you will see the places where they meet.
Exoskeletons are characteristic of the Phylum Arthropoda. Exoskeletons are hard segments that cover the muscles and visceral organs. Muscles for movement attach to the inner surface of the exoskeleton.
exoskeleton A supporting structure secreted by ectoderm or epidermis; external, not enveloped by living tissue, as opposed to endoskeleton.
an exoskeleton which is impervious to water and thus prevents loss of water from the body;
a system of tracheal tubes which penetrates every portion of the body, taking oxygen to, and carbon dioxide from, every cell;
paired, jointed appendages ...
They are segmented and have exoskeletons made primarily of chiton, a polysaccharide. They are bilaterally symmetrical and their appendages are specialized for a variety of functions.
a carbohydrate that forms part of the exoskeleton of arthropods and other organisms, such as insects, crustaceans, fungi, and some algae.
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Animals with three segmented body regions, a jointed exoskeleton, blood in body cavities, and a complex nervous system. Includes spiders and insects.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
There are antigens () in dust mites, in their droppings () and shed exoskeletons. Once these antigens get under the skin of an allergic host, the antigens cause mast cells to go berserk.
Crustacean: Any of a zoological class (Crustacea) that have a chitinous and/or calcareous exoskeleton (lobsters, shrimps, crabs).
Cellulose and Chitin are polysaccharides that function to support and protect the organism. The cell walls of plants are composed of cellulose. The cell walls of fungi and the exoskeleton of arthropods are composed of chitin.
This mite punctures the exoskeleton of the flies and feeds on the "juices". Material, including DNA, from one fly can be transferred to another when the mite feeds.
The rigidity bestowed on cells by intermediate filament networks is especially useful to soft-bodied animals that do not possess an exoskeleton.
 See also: Organ, Skeleton, Animal, Animals, Cells
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