Chapter 10 Flashcards
What is cartilage?
A connective tissue that is firm but flexible.
What does ovoviviparous mean?
Producing young by means of eggs that are hatched inside one of the parents.
What does viviparous mean?
Producing live young that received nutrients and oxygen directly from the mother.
What is anadromous?
A life cycle in which fish are born in freshwater, migrate to saltwater to live, and then return to freshwater to spawn.
What is a cleaning station?
A location on a coral reef where larger fish come to be cleaned of parasites and dead skin by cleaner organisms like wrasse and shrimp.
What does extant mean?
Living examples of the organism are known to exist.
What is a living fossil?
An organism that is a living example of an otherwise extinct group and has remained virtually unchanged in structure and function.
What is mimicry?
A superficial resemblance between two animals that are not closely related.
What is a vertebrate?
Animals with a backbone or spinal column.
Examples: Fish, amphibians, reptiles, birds, and mammals.
What defines fish?
Aquatic, ectothermic vertebrates with gills, fins, and scales. They reproduce primarily by laying eggs.
What are Chondrichthyes?
A class of fish with a cartilage-based skeleton rather than bone.
Examples: Sharks, rays, and skates.
What are Osteichthyes?
A class of fish with a bony skeleton.
Examples: Tuna, cod, and seahorses.
What is Chordata?
A phylum of animals that have a notochord, dorsal nerve cord, and pharyngeal slits at some stage in their life cycle.
Examples: Fish, amphibians, reptiles, birds, and mammals.
What is Anura?
The order of amphibians that are four-legged animals with no tails as adults.
Examples: Frogs and toads.
What is Apoda?
The order of amphibians that have no legs.
Example: Caecilians.
