Chordata Characteristics
Fish
Amphibia
Reptiles
Fertilization & Development
100
All chordates possess this flexible rod between the gut and nerve chord.
What is a notochord?
100
Members of class agnatha lack this.
What is a jaw.
100
_______________ means "four footed" and describes most amphibians.
What is tetrapod?
100
TRUE OR FALSE: Reptiles are ectotherms.
TRUE
100

The function of the allantois in an amniotic egg.

What is a sac of blood vessels that allows for the respiration and excretion of the embryo.

200
TRUE OR FALSE: Some chordates only possess notochords during embroyonic development.
TRUE
200
How does a lamprey feed?
Parasitically - by attaching itself to host fish.
200
How many chambers does an amphibian have in its heart?
What is three?
200
Name one advance reptiles have over amphibians?
Freedom from water, internal fertilization, amniotic eggs
200

The name of development that occurs in an egg that is hatched outside the female's body

What is oviparous development?

300
All chordates possess these filter feeding organs at some point during development.
What are pharangeal slits?
300
What distinguished sharks, skates, and rays from other types of fish?
They have cartilage instead of bone.
300
Which has more developed lungs, frogs or salamanders?
Frogs
300
Order squamata is the most diverse within reptiles. What does it include?
Snakes and lizards
300

The name of development that occurs inside the female, allowing offspring to gain nutrients/vital substances from mom through a placenta.

What is viviparous development?

400
How do lancets feed?
They bury themselves in the sand and filter feed.
400
This is the most common class of fish.
What is class osteichthes or bony fish?
400
Toads have ___________ skin, which provides them with a level of waterproofing.
What is keratinized?
400
This order includes the largest reptiles.
What is crocodilia?
400

The process by which the male places sperm inside the female's body, where the eggs are feritlized.

What is internal fertilization?

500
What does the notochord develop into in many vertebrates?
The spinal cord.
500
This organ allows bony fish to regulate buoyancy. 
What is a swim bladder?
500
This is the larval stage of a frog.
What is a tadpole?
500
How many species of reptiles are there? (guess should be correct within 2000)
7000
500

The part of an amniotic egg that protects the embryo from pathogens, acts as a shock absorber, & stores proteins and water for the embryo.

What is the albumen?

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