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What is a Vertebrate (Characteristics of Chordates (Chordates (All members…
What is a Vertebrate
Characteristics of Chordates
Chordates
All members of the chordate phylum
At some point in their lives, chordates will have
A notochord, a nerve chord that runs down their back, and slits in their throat area
Notochord
The name Chordata comes from notochord
A flexible rod that supports a chordate's back
Nerve Chord in Back
Connection between the brain and the nerves and messages travel back and forth
Slits in Throat Area
Pharyngeal
Characteristics of Vertebrates
A vertebrate has a backbone that is part of an internal skeleton
Backbone
Vertebrae
backbone is formed by many similar bones
Internal Skeleton
Endoskeleton
Keeping Conditions Stable
The body temperature of most fishes, amphibian, and reptiles is close to the temperature of their environment. In contract, birds and mammals have a stable body temperature that is often warmer than their environment
Ectotherms
An animal whose body does not produce mush internal heat
Endotherms
An animal whose body regulates its own temperature by controlling the internal heat it produces