Ra'Shae+Thomas

Zoology Final Project Ra'Shae http://www.faizani.com/news/news_2003/human_body_facts.html

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**To keep the animal kingdom safe is to clear it of bacteria. As humans to keep are environment safe is to keep our pollution together.Bird populations are especially vulnerable to oil spills because their plumage soaks up the oil, reducing the effectiveness of what their feathers are designed to do keep them afloat, flying and warm. In addition, as the birds preen themselves to get rid of the oil, they ingest the oil and it poisons them.H ypothermia in birds by reducing or destroying the insulation and waterproofing properties of their feathers. Without human intervention, most oil-contaminated birds die. The oil spill effected a lot of animals especially fishes. A lot of fishes were dead or effected by the oil spill by the chemicals which you couldn't even fish or sell. It would effect the digestive system even producing eggs. ** =====

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**Mollusk are another name for shellfish and common name or scientific name for it is mollusca. Mollusca are large are large phylum of a invertebrate animals. Its the largest marine phylum. They live in fresh water and terrestrial habituate. They are highly diverse in structure and size. The shell is secreted by a mantle that covers the upper surface. A mollusk has many system. The muscular system is for the soft body and outer body or shell. The digestive system foods go though a siphon system and then through the mouth then though the digestive system into the intestines which waste leaves through the anus. ** =====

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**An arthropod is an invertebrate animal having an exoskeleton external skeleton, a segmented body, and jointed appendages. Arthropods are members of the phylum Arthropoda and include the insects, arachnids, crustaceans, and others. Arthropods are characterized by their jointed limbs and [|cuticles], which are mainly made of α-chitin; the cuticles of crustaceans are also biomineralized with calcium carbonate. The rigid cuticle inhibits growth, so arthropods replace it periodically by molting. The arthropod body plan consists of repeated segments, each with a pair of appendages. It is so versatile that they have been compared to Swiss Army knives, and it has enabled them to become the most species-rich members of all ecological guilds in most environments. They have over a million described species, and are one of only two animal groups that are very successful in dry environments – the other being the amniotes. They range in size from microscopicplankton up to forms a few meters long. ** =====

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**Echinoderms are characterized by radial symmetry, several arms radiating from a central body. The body actually consists of five equal segments, each containing a duplicate set of various internal organs. They have no heart, brain, nor eyes, but some brittle stars seem to have light sensitive parts on their arms. Their mouth is situated on the underside and their anus on top except feather stars, sea cucumbers and some urchins. ** =====

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**Echinoderms have tentacle-like structures called tube feet with suction pads situated at their extremities. These tube feet are hydraulically controlled by a remarkable vascular system. This system supplies water through canals of small muscular tubes to the tube feet (= ambulacral feet). As the tube feet press against a moving object, water is withdrawn from them, resulting in a suction effect. When water returns to the canals, suction is released. The resulting locomotion is generally very slow. Water vascular system is used for to exchange gas, feeding.** =====

===** Aves are in other words are birds. Birds that are  feathered, winged, bipedal, endothermic and warm-blooded, egg-laying, vertebrate animals. Dinosaurs are origin from birds. Things that birds eat are fruit, plants and seeds. Their digestive system is adapted to unmasticated for them to swallow whole. They drink water or salt water but they have salt glands which are located near the nostrils to digest salt water. Birds are good for our environment because of their meat and eggs they are proteins for our body.  **===