Chapter 16Fishes, Amphibians, and Reptiles

An animal with a skull and a backbone; includes mammals, birds, reptiles, amphibians and fish

An animal with a skull and a backbone; includes mammals, birds, reptiles, amphibians and fish

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Vertebrate

An animal with a skull and a backbone; includes mammals, birds, reptiles,

amphibians and fish

An animal with a skull and a backbone; includes mammals, birds, reptiles,

amphibians and fish

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Segments of bone or cartilage that interlock to form a backboneSegments of bone or cartilage that interlock to form a backbone

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Vertebrae

Segments of bone or cartilage that interlock to form a backbone

Segments of bone or cartilage that interlock to form a backbone

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An animal that maintains a constant body temperature despite temperature changes in its environment, warm blooded

An animal that maintains a constant body temperature despite temperature changes in its environment, warm blooded

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Endotherm

An animal that maintains a constant body temperature despite temperature changes in its environment, warm

blooded

An animal that maintains a constant body temperature despite temperature changes in its environment, warm

blooded

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An animal whose body temperature fluctuates with the temperature of its environment, cold blooded

An animal whose body temperature fluctuates with the temperature of its environment, cold blooded

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Ectotherm

An animal whose body temperature fluctuates with the temperature of its

environment, cold blooded

An animal whose body temperature fluctuates with the temperature of its

environment, cold blooded

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Fanlike structures that help fish move, turn, stop and balanceFanlike structures that help fish move, turn, stop and balance

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Fins

Fanlike structures that help fish move, turn, stop and balance

Fanlike structures that help fish move, turn, stop and balance

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Bony structures that cover the skin of bony fishesBony structures that cover the skin of bony fishes

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Scales

Bony structures that cover the skin of bony fishes

Bony structures that cover the skin of bony fishes

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Row of tiny sense organs along the sides of a fish’s bodyRow of tiny sense organs along the sides of a fish’s body

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Lateral line system

Row of tiny sense organs along the sides of a fish’s body

Row of tiny sense organs along the sides of a fish’s body

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Organs that remove oxygen from the water and carbon dioxide from the blood

Organs that remove oxygen from the water and carbon dioxide from the blood

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Gills

Organs that remove oxygen from the water and carbon dioxide from the

blood

Organs that remove oxygen from the water and carbon dioxide from the

blood

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Small, sharp toothlike structures on the skin of cartilaginous fishesSmall, sharp toothlike structures on the skin of cartilaginous fishes

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Denticles

Small, sharp toothlike structures on the skin of cartilaginous fishes

Small, sharp toothlike structures on the skin of cartilaginous fishes

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Balloon-like organ that is filled with oxygen and other gases; gives bony fishes their buoyancy

Balloon-like organ that is filled with oxygen and other gases; gives bony fishes their buoyancy

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Swim Bladder

Balloon-like organ that is filled with oxygen and other gases; gives bony

fishes their buoyancy

Balloon-like organ that is filled with oxygen and other gases; gives bony

fishes their buoyancy

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A sac-like organ that takes oxygen from the sir and delivers it to the blood

A sac-like organ that takes oxygen from the sir and delivers it to the blood

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Lung

A sac-like organ that takes oxygen from the sir and delivers it to the

blood

A sac-like organ that takes oxygen from the sir and delivers it to the

blood

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Aquatic larvae of an amphibianAquatic larvae of an amphibian

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Tadpole

Aquatic larvae of an amphibianAquatic larvae of an amphibian

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Process in which an insect or other animal changes form as it develops from an embryo or larva to an adult

Process in which an insect or other animal changes form as it develops from an embryo or larva to an adult

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Metamorphosis

Process in which an insect or other animal changes form as it develops from an

embryo or larva to an adult

Process in which an insect or other animal changes form as it develops from an

embryo or larva to an adult

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Prehistoric, reptile ancestor of mammalsPrehistoric, reptile ancestor of mammals

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Therapsid

Prehistoric, reptile ancestor of mammalsPrehistoric, reptile ancestor of mammals

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Egg containing amniotic fluid to protect the developing embryo; usually surrounded by a hard shell

Egg containing amniotic fluid to protect the developing embryo; usually surrounded by a hard shell

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Amniotic Egg

Egg containing amniotic fluid to protect the developing embryo; usually

surrounded by a hard shell

Egg containing amniotic fluid to protect the developing embryo; usually

surrounded by a hard shell

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