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vertebrate origins
fish diversity
bony fish
amphibians
amniotes
100
lancelets, tunicates, vertebrates
What are the three groups that make up the phylum Chordata?
100
Fish have this many chambers in their heart.
What is two?
100
Has fins shaped like a fan and maneuvers easily through water
What is ray-fin fish?
100
means to have 4 limbs
What is a tetrapod?
100
a vertebrate that has a thin, tough, membranous sac that encloses the embryo or fetus during development
What is an amniote?
200
An endoskeleton
What is an internal skeleton
200
frilly tissue filled with capillaries to take in oxygen
What are gills?
200
Has fins that are thick and fleshy and are paired.
What is lobe-finned fish?
200
means can live on land and in water
What is amphibian?
200
the protein that binds to lipids inside the cell to from a waterproof layer that allows an amniote to retain moisture
What is keratin?
300
notochord, hollow nerve cord, pharyngeal slits, tail
What are the 4 characteristics that vertebrates have at some point in their development?
300
The opposite flow of water against the flow of blood found in the fish's gills.
What is countercurrent flow?
300
coelacanths and lungfish
What is are two types of lobe-finned fish in existence today?
300
the three types of amphibians
What are salamanders, frogs, and caecilians?
300
a membranous organ that develops in female mammals during pregnancy
What is a placenta?
400
This class contains the cartilaginous fish
What is Chondrichthyes?
400
Holocephali and Elasmobranchs
What are two types of cartilaginous fish?
400
It controls a fish's buoyancy
What is a swim bladder?
400
the amphibians that are predators, legless burrowing, and live in the tropics
What are caecilians?
400
amniote's kidneys and intestines are larger or smaller than amphibians
What is larger?
500
lateral line
What is sensory system of a fish?
500
This protects the gills.
What is an operculum?
500
the amphibian group that has the most species
What are frogs?
500
Allows amniotes to live permanently on land because it is an almost waterproof container that doesn't dry out as it develops.
What is an amniotic egg?