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6th Chap2 Vocab

QuestionAnswer
An animal that has the beginnings of a backbone during one or more stages of development chordate
A hard, external covering of an animal exoskeleton
A cold-blooded animal whose body temperature fluctuates with the temperature of its environment ectotherm
An external structure that extends from the main body appendage
A warm-blooded animal that maintains a constant internal temperature endotherm
A strong, structural protein found in skin, hair, nails, and feathers keratin
An invertebrate that has a segmented body, jointed appendages, and usually an exoskeleton arthropod
A mainly aquatic arthropod that has a hard exoskeleton and two pairs of antennae crustacean
An invertebrate with a soft body that is typically enclosed in a shell mollusk
An invertebrate that exhibits radial symmetry and a tough, spiny skin echinoderm
An invertebrate with radial symmetry, a soft body, and tentacles with stinging capability cnidarian
An invertebrate with a porous, asymmetrical body that pumps and filters water poriferan
The small pores through which water and nutrients enter a sponge ostia
A large region that has a particular climate and specific plants and animals biome
Example of an endothermic vertebrate bird
Example of an ectothermic vertebrate, life cycle in water AND on land amphibian
Example of an arthropod with eight legs and two body segments arachnid
Example of an ectothermic vertebrate, aquatic habitat, gills, two-chambered heart fish
Three characteristics: body hair, three middle ear bones, feeds milk to young mammal
Lacks a backbone invertebrate
Example of an echinoderm with radial symmetry starfish
Round, flat or segmented types of worms
Scientist who developed classification system most used today Carolus Linnaeus
Example of a poriferan sponge
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