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Invertebrates

TermDefinition
Cnidarian A radially symmetry invertebrate that uses stinging cells to capture food and defend itself
Mollusks An invertebrate with a soft, unsegmented body; most are protected by a hard outer shell.
Arthropod An invertebrate that has an external skeleton, a segmented body, and joined appendages.
Exoskeleton External Skeleton; a tough waterproof outer covering that protects supports and helps prevent evaporation of water from the body of many invertebrates.
Echinoderm A radially symmetrical marine invertebrate that has an internal skeleton and system of fluid filled tubes.
Endoskeleton An internal skeleton; structural support system withing the body.
Chordate An animal that has a notochord, a nerve cord, and throat, poaches at some point in its life.
Notochord A flexible rod that supports a chordate's back just below the nerve cells.
Vertebrae An animal with a backbone.
Ectotherm A radially symmetrical marine invertebrate that has an internal skeleton and a system of fluid filled tubes.
Endotherm An animal whose body temperature is regulated by the internal heat the animal produces.
Fish A vertebrate whose body temperature is determined by the temperature of its environment and that lives in the water and has fins.
Cartilage A connective tissue that is more flexible than bone that protects the ends of the bones and keeps them from rubbing together.
Amphibian A vertebrate whose body temperature is determined by the temperature of its environment, and that lives its early life in water and its adult life on land.
Reptile A vertebrate whose body temperature is determined by the temperature of its environment, that has lungs and scaly skin and lays eggs on land.
Bird A vertebrate whose body temperature is regulated by its internal heat, lays eggs, and has feathers, and a four chamber heart.
Mammal An animal whose body temperature is regulated by the internal heat the animal produces, fur produce milk to feed young.
Mammary Gland An organ that makes a female able to produce milk.
Monotreme A mammal that lays eggs
Marsupial Born at early age of development kept in pouch
Placental Mammal Develops in body until able to function on own
Placenta links mother to developing animal.
Created by: lsanderson14
 

 



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