Zoology Test #2 Flashcards
What purpose do pharyngeal pouches serve?
They help develop the embryo and in humans become part of the ear.
What are some characteristics of the vertebrate skeleton?
A spinal chord and nerve core
What phylum do lancelets belong to
Cephalocordata
What are some characteristics of the class Chondrichthyes?
Cartilage fish, most are predators ex. Shark or stingray
What structure obtains oxygen in the fish?
Gills
What feature best distinguishes fish from amphibian?
Lungs
What are characteristics of an Amphibians Circulatory system?
Double Loop, 3 Chambered Heart
What are tympanic membranes?
Eardrums
All reptiles produce by ______ fertilization and most are ____.
External; oviviparous
What order do caimans and gavials belong to?
Crocodilia
List the order of food in the digestive system of a bird
Crop, gizzards, cloaca
What kind of temperature regulation happens in birds?
Endothermic
What is the function of the contour feathers?
They cover the head and body and conserve heat
What characteristic of the heart do we encounter in birds
A 4 chambered heart
What kind of feet and beak would we see in a bird of prey?
Sharp and curved beak, and clawed feet
What are characteristics of a mammal?
Hair, specialized teeth, endothermic, mammary glands