- an endoskeleton of bone or cartilage.
- notochord
- Are agnaths coldblooded or warmblooded?
- coldblooded, but body temperatures vary.
- are chondrichthyes cold blooded or warm blooded?
- coldblooded
- fossil records indicate ____ existed for ___ million years.
- agnaths, 500
- Heterotrophic animals that possess a notochord
- vertebrates
- How many chambers are there to a chondrichthyes heart?
- 2
- How many chambers to an agnath heart?
- 2 chambers
- how many classes of chordates are there?
- 7
- How many gill slits do agnaths have?
- 7 gill slits
- notochord
- an endoskeleton of bone or cartilage.
- primitive form of vertebrate?
- agnath
- vertebrates
- heterotrophic animals that possess a notochord.
- What are agnath?
- jawless fish
- What are agnaths skeletons made of?
- cartilage
- What are chondrichthyes skeletons amde of?
- cartilage
- what are some examples of agnath?
- lamprey and hagfish
- What are some examples of chondrichthyes?
- sharks, rays, and skates.
- what are the chordate classes?
- agnath, chondrichthyes, osteichthyes, amphibians, reptiles, aves, mammals
- What does "chond" mean?
- cartilage
- what does "ich" mean?
- fish
- what is chordate in classification system?
- phylum
- what kind of habitat do agnaths have?
- fresh or salt water, in the Great Lakes
- what kind of mouth do agnaths have?
- suction type mouth with teeth
- What type of vertebrate are agnaths?
- parasitic vertebrate
