Comparisons
This class of fish skeleton consists of only cartilage.
What is chondrichthyes?
What is big tooth?
Osteichthyes skeletons consist of these two substances.
What is bone and cartilage?
The name of the organ off of the pelvic fins that distinguishes if a fish is a male.
What is claspers?
The closest living relative to the megalodon.
What is the great white shark?
This class of fish can swim both forward and backwards.
What is osteichthyes?
Osteichthyes posses sacs along their dorsal ridge filled with gas to regulate buoyancy called what.
What is a swim bladder?
Most fish are oviparous which means that they give birth this way.
What is lay eggs?
In these types of fish, the males get pregnant instead of the females.
What is seahorses?
What is an oily liver?
The membrane that covers and protects the eyes in some shark species.
What is the nictitating eyelid?
The ray finned fishes are in this subclass of Osteichthyes (Sarcopterygii or Actinopterygii)
What is Actinopterygii?
True or False: Osteichthyes provide parental care after birth.
What is false?
This is the largest fish in the world.
What is the whale shark?
What is dermal or placoid scales?
One of the main differences batoids have from sharks?
What is
-bodies are flattened
-pectoral fins are fused to the head
-some have venomous spines on the tail
The radial bones in this subgroup extend out into the fins to allow muscular lobes and the ability to put weight on them (Actinopterygii or Sarcopterygii)
What is Sarcopterygii?
Seahorses are one species of fish where the eggs and babies both develop and hatch inside of the parent which is called this.
What is ovoviviparous?
Name one of the three species of filter feeding sharks.
What is whale shark, basking shark, or megamouth shark?
This is the name of the bony gill covering in Osteichthyes.
What is an operculum?
The sensory system on the head of sharks that allows them to detect small electrical currents in water.
What is the ampullae of Lorenzini?
This type of caudal fin in Osteichthyes has a uniform appearance and the vertebrae terminates in the middle of it.
What is homocercal?
When a female is able to produce fertilized offspring without a male present.
What is parthenogensis?
What is Marlin would become a female and mate with Nemo to repopulate the group?