Chordates
Chordates are a phylum of animals that have a notochord, a dorsal nerve cord, pharyngeal slits, and a tail. They are the most diverse phylum of animals, and include vertebrates, tunicates, and cephalochordates.
Summary
- Chordates have five characteristics: a notochord, a dorsal nerve cord, pharyngeal slits, a tail, and a segmented body.
- There are three subphyla of chordates: vertebrates, tunicates, and cephalochordates.
- Some examples of chordates are: fish, amphibians, reptiles, birds, and mammals.
- The evolutionary advantages of chordates include: a flexible body, a well-developed nervous system, and a closed circulatory system.
Questions
- What are the five characteristics of chordates?
- What are the different subphyla of chordates?
- What are some examples of chordates?
- What are the evolutionary advantages of chordates?
Answers
- The five characteristics of chordates are: a notochord, a dorsal nerve cord, pharyngeal slits, a tail, and a segmented body.
- The three subphyla of chordates are: vertebrates, tunicates, and cephalochordates.
- Some examples of chordates are: fish, amphibians, reptiles, birds, and mammals.
- The evolutionary advantages of chordates include: a flexible body, a well-developed nervous system, and a closed circulatory system.