Vertebrates, Fishes, Amphibians and Reptiles

Science

Watch Lesson: Vertebrates, Fishes, Amphibians and Reptiles

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An Egg With A Shell And Membrane To Protect The Embryo, Like An Egg Laid By Birds, Reptiles, And Mammals.

Amniotic Egg

Amniotic Egg Simple Definition

A Cold-blooded Animal That Can Live Both On Land And In Water, Like A Frog.

Amphibian

Amphibian Simple Definition

A Strong, Flexible Connective Tissue Found In Skeletons.

Cartilage

Cartilage Simple Definition

An Animal That Has A Tail, Nerve Cord, Notochord, And Throat Slits At Some Point In Its Life.

Chordate

Chordate Simple Definition

An Animal Whose Body Temperature Depends On Its Environment.

Ectotherm

Ectotherm Simple Definition

An Animal That Can Generate Heat To Maintain A Constant Internal Temperature.

Endotherm

Endotherm Simple Definition

The Breathing Organ Of Aquatic Animals.

Gill

Gill Simple Definition

The Respiratory Organ That Absorbs Oxygen From The Air And Removes Carbon Dioxide From The Blood.

Lung

Lung Simple Definition

A Warm-blooded Vertebrate Whose Young Feed On Milk Produced By The Mother.

Mammal

Mammal Simple Definition

A Flexible, Rod-like Structure That Runs Along The Upper Part Of A Chordate’s Body.

Notochord

Notochord Simple Definition

A Cold-blooded Vertebrate With Scaly Skin That Lays Eggs.

Reptile

Reptile Simple Definition

A Ratio Of The Size Of A Model To The Object It Represents..

Scale

Scale Simple Definition

A Gas-filled Sac In Bony Fishes That Helps Them To Control Their Swim Depth.

Swim Bladder

Swim Bladder Simple Definition

The Aquatic Larva Of A Frog Or Toad.

Tadpole

Tadpole Simple Definition

One Of The Heart’s Two Lower Chambers, It Pumps Blood Out Of The Heart.

Ventricle

Ventricle Simple Definition

An Animal With A Backbone.

Vertebrate

Vertebrate Simple Definition