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Ch. 15 LIFESCIENCE

Ch. 15 fish, amphibians and reptiles

QuestionAnswer
Dorsal structure that becomes the backbone in vertebrates Notochord
Ectothermic land and water animal Amphibian
The internal skeleton Endoskeleton
Tough, flexible tissue Cartilage
Every vertebrate is also this... Chordate
Inactivity in winter Hibernation
Inactivity in summer Estivation
An ectotherm with dry skin Reptile
Fan-like steering structure in fish Fin
Species that are sensitive to changes in the environment... Biological Indicator
Animals that have fins, scales and gills are _____________ Fish
Jawless fish do not have _____________ or _____________ Movable Jaws, Scales
An example of a cartilaginous fish is a _____________ Hagfish
Most fish species belong to the _____________ group Osteichthyes
The group of vertebrates with lungs and moist skin is _____________ Amphibians
A _____________ is NOT a reptile Salamander
The group of reptiles that included lizards also includes _____________ Snakes
Reptiles lay _____________ eggs Amniotic
At some time in their lives, all _____________ have a notochord, dorsal hollow nerve cord, and gill slits Chordates
Tubular bundle of nerves that lies above the notochord... Dorsal Hollow Nerve Cord
Endo- means Within
Cold blooded vertebrates Ectotherm
Warm blooded vertebrates Endotherm
Fan-like structures used for steering Fins
Hard, thin overlapping plates covering fish's body Scales
Cartilaginous fish are members of this class Chondrichthyes
Bony fish are members of this class Osteichthyes
Ability to float Buoyancy
This 'organ' enables fish to adjust their density Swim Bladder
The _________ is the only living representative of the lobe-finned fishes Coelacanth
The Greek word Amphibios means... Double Life
The larval stage of frogs Tadpole
Amphibians are considered to be _________ because of their unique way of life Biological Indicators
Brightly colored frogs are often ________ Poisonous
___________ is an ectothermic vertebrate with dry, scaly skin Reptiles
___________ contains membranes to protect and cushion the reptilian embryo Amniotic Egg
Created by: SavannahElkins
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