Term
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Definition
| Tree of different types of animals based on the body plan |
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Term
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Definition
| No true tissue, water flows in through small pores into a central cavity, they are suspension feeders (have no mouth) and engulf food particles via phagocytosis |
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Term
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Definition
| Radial symmetrical and bodies arise from only two tissue layers (outer epidermis and inner cell layer). eg. sea anemone, a jelly fish, etc. Two types: polyp and medusa |
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Term
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Definition
| Sessile e.g. sea anemone and hydra (type of cnidarian) |
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Term
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Definition
| Free swimming, jelly fish (type of cnidarian) |
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Term
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Definition
| animals that feed by straining suspended matter and food particles from water. |
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Term
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Definition
| Bilateral, flattened body, and acoelomates |
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Term
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Definition
| Type of flatworm, parasites in digestive track, no mouth or digestive track b/c the host has already partially digested food in intestine so tape worms simply absorb nutrients across their body surface. |
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Term
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Definition
| Soft bodied animals, most protected by a hard shell, have a true coelom and open circulatory system. |
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Term
| Gastropods (type of mollusc) |
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Definition
| Largest group, only molluscs that live on land (but also can live in water), have a spiraled shell e.g. snails |
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Term
| Bivalves (type of mollusc) |
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Definition
| Shell divided into 2 halves, suspension feeders, no head, no radula (similar to tongue), cilia grab food, sessile e.g. clams |
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Term
| Cephalopods (type of mollusc) |
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Definition
| Adapted to life of fast, agile predators, large brain, have eyes, most intelligent invertebrets e.g. squid and octopus |
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Term
3 main body parts of a Mollusk |
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Definition
| a muscular foot (movement), visceral mass (internal organs), and a mantle (provides protection and shape) |
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Term
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Definition
| Lack a coelom (fluid filled cavity in mesoderm) |
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Term
| Chitons (type of mollusc) |
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Definition
| Oval shaped body, shell divided into 8 dorsal plates |
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Term
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Definition
| Segmented worms, most internal body structures repeated in each segment, however digestive track goes through to the end, closed circulatory system |
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Term
| Difference between open and closed circulatory system |
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Definition
| Ours is closed, meaning that the blood never leaves the network of blood vessels, whereas in an open circulatory system the blood is pumped into open body cavities (organs can "bathe in the blood") |
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Term
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Definition
| Segmented animals with joint appendages and hard exoskeleton, largest phylum. Includes chelicerates, millipedes & centipedes, crustaceans, and insects |
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Term
| Exoskeleton of arthropods |
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Definition
| The exoskeleton is a nonliving shell made of protein and chitin. As it grows it must shed the exoskeleton (molting) |
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Term
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Definition
| Over 70% of all animal species. Have wings, short generation times, and loads of offspring |
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Term
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Definition
| Larval stage is specialized for eating and growing, molts several times as it grows, then exists in a nonfeeding pupa (looks like a cocoon) |
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Term
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Definition
| When transition from larva to adult happens through molts but without forming a pupa. |
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Term
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Definition
| Closest phyla to chordate, radial symmetric adult, bilateral larvae, have a unique water vascular system (water-filled canals that branch into extensions called tube feet) e.g. sea-star, sea urchin, etc. |
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Term
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Definition
| Shedding skeleton for another one as organism grows |
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