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90 Cards in this Set

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  • Back
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•dorsal, hollow notochord


•nerve cord


•pharyngeal pouches (become gills)


•tail extends beyond anus

Four main characteristics:

Vertebrates

Most chordates are ___.

•Lancelets


•Sea squirts

Examples of invertebrate chordates:



All


Not all

___ Vertebrates are chordates but ___ chordates are vertebrates

Brain

Front end of a vertebrate's spinal cord develops a ___.

Closed

Vertebrates have a ___ circulatory system

•living endoskeleton with vertebral column


•paired Appendages


•efficient respiration and excretion


•high degree of cephalization

Features of a vertebrate:





Jawless fish

Ex: lamprey, hagfish

Jawless fish

Ex: lamprey, hagfish

Cartilage fish

Ex: Sharks, rays

Jawless fish

Ex: lamprey, hagfish

Cartilage fish

Ex: Sharks, rays

Bony fish

Ex: salmon, catfish, goldfish

Jawless fish

Ex: lamprey, hagfish

Circulation


Respiration


Excretion

Characteristics:


Form and Function;


1.


2.


3.

Blood is passed over the gills where it picks up oxygen (blood & water flowing in opposite directions)

What does a 2 chambered heart in fish do?

Circulation

Gill covers

Operculum-

Respiration

Gills

During respiration, water passes over ___, oxygen is added

Lungfish

Which fish has special organs to serve as lungs?

Maintaining water balance

Homeostasis-

Lose

During excretion, salt water fish tend to ___ water

Ostracoderm

The earliest vertebrate fossil

Lampreys and hagfishes

Modern day jawless fishes that lack a bony skeleton



Gain

During excretion, freshwater fish tend to ___ water

Cartilage fish

Ex: Sharks, rays

Jawless fishes

Superclass Agnatha

Have jaws

Gnathostomates

Placoderm

-extinct jawed fishes of the Devonian Period

Chondrichthyes

Class C......s have a skeleton of cartilage

Sharks, rays, skates

Examples of Cartilaginous fishes

Gill cover of bony fish

Cartilaginous fish lack ________.

Lateral line system

Cartilaginous fish utilize______

Cartilaginous fish

Can be filter feeders and predators

Cartilaginous fish

Pectoral fins can be enlarged into large, winglike fins

Osteichthyes

Class O........s have a skeleton of bone

Bony fish

Ex: salmon, catfish, goldfish

Osteichthyes

Most are ray finned fishes

Lobe-finned fishes

Small subgroup with fleshy fins supported by central bones

Swim bladder

Gas-filled sac in bony fishes

Bony

In ____ fishes volume can be altered to change buoyancy

Amphibians

Ex: Frogs, salamanders

Reptiles

Ex: lizards, turtles

Birds

Ex: sparrows, hawk

Mammals

Ex: Humans, whales, cats

Anything with gills, scales, fins...

What are fish?

Jawless

1st fish were ___.

Denovian Period

"Age of Fishes"

Jawless fish

Ex: lamprey, hagfish

Circulation


Respiration


Excretion

Characteristics:


Form and Function;


1.


2.


3.

Blood is passed over the gills where it picks up oxygen (blood & water flowing in opposite directions)

What does a 2 chambered heart in fish do?

Circulation

Gill covers

Operculum-

Respiration

Gills

During respiration, water passes over ___, oxygen is added

Lungfish

Which fish has special organs to serve as lungs?

Maintaining water balance

Homeostasis-

Lose

During excretion, salt water fish tend to ___ water

Ostracoderm

The earliest vertebrate fossil

Lampreys and hagfishes

Modern day jawless fishes that lack a bony skeleton



Gain

During excretion, freshwater fish tend to ___ water

Cartilage fish

Ex: Sharks, rays

Jawless fishes

Superclass Agnatha

Have jaws

Gnathostomates

Placoderm

-extinct jawed fishes of the Devonian Period

Chondrichthyes

Class C......s have a skeleton of cartilage

Sharks, rays, skates

Examples of Cartilaginous fishes

Gill cover of bony fish

Cartilaginous fish lack ________.

Lateral line system

Cartilaginous fish utilize______

Cartilaginous fish

Can be filter feeders and predators

Cartilaginous fish

Pectoral fins can be enlarged into large, winglike fins

Osteichthyes

Class O........s have a skeleton of bone

Bony fish

Ex: salmon, catfish, goldfish

Osteichthyes

Most are ray finned fishes

Lobe-finned fishes

Small subgroup with fleshy fins supported by central bones

Swim bladder

Gas-filled sac in bony fishes

Bony

In ____ fishes volume can be altered to change buoyancy

Members of the kingdom Animalia and phylum Chordata

What is a chordate?

Invertebrate

In ____ chordates, the notochord persists and is never replaced by a vertebral column

Fishes

Aquatic, gill breathing vertebrates

Fishes

Usually have fins and scale-covered skin

Placoderms

Thought to be ancestral to sharks and bony fish

Amphibians

Ex: Frogs, salamanders

Reptiles

Ex: lizards, turtles

Birds

Ex: sparrows, hawk

Mammals

Ex: Humans, whales, cats

Anything with gills, scales, fins...

What are fish?

Jawless

1st fish were ___.

Denovian Period

"Age of Fishes"

Animals with a backbone (and endoskeleton)

What is a vertebrate?

Vertebrates

Have a spinal chord

Dorsal, hollow nerve cord

Spinal chord-

Sharks

Eat their siblings in the womb