Animal Phyla

Question 1

Phylum Chordata

Class Agnatha

Answer 1

Lamprey

Question 2

Class Chondrichthyes

Answer 2

Sharks and rays

Question 3

Class Osteichthyes

Answer 3

Perch,bone skeletons, gill covers

Question 4

Class amphibia

Answer 4

Need land and water, 4 limbs, frogs

Question 5

Class reptilia

Answer 5

Have scales, 4 limbs, leg egg with shell, turtles

Question 6

Class Aves

Answer 6

Feathers, lay eggs, penguins

Question 7

Class Mammalia

Answer 7

Have hair, humans and platypus

Question 8

Phylum Chordata

List the three main characteristics of this phylum

Answer 8

Dorsal notochord:
A rod of tough, flexible tissue. Serves as animals primary support

Dorsal tubular nerve cord:
Main part of the animals nervous system

Pharyngeal pouches:
Pouches openings develop in most aquatic chordates. In non Aquatic the pouches never open. These pouches permit water to flow over the gills

Question 9

What is the major distinguishing feature of vertebrates?

Answer 9

They all have an endoskeleton which forms the vertebrate