Zoology Unit 2 Exam

Notochord

Primitive Backbone

Crop

Food holding area in birds

Cloaca

Waste and reproduction, same hole

Altricial

Completely dependent on parents

Monogamous

Mating for life

Gizzard

Area in the stomach where birds can swallow rocks to grind food

Pygostyle

Where tail feathers attach to the fused vertebrae

Brood Parasite

Birds that lay eggs in other nests in hope that the owner of the nest will raise their young for them.

Daily Torpor

When an animal needs to reduce metabolism in order to conserve calories

Monotreme

Duck-billed platypus or echidna

Shivering Thermogenesis

When muscles involuntary contract rapidly to generate heat

Diapsid Skull

Birds and reptiles have two holes in the back of their skulls

Struthioniformes

Ostritch

Apterygiformes

Kiwi

Passeriformes

Blue jay, tufted titmouse, black-billed magpie

Accipitriformes

Red-tailed hawk

Anseriformes

Swan, geese, ducks

Galliformes

Quail, phesants, grouse, turkeys

Gruiformes

Sandhill crane, American loot

Procelleriiformes

Albatross

Strigiformes

Great horned owl, barn owl

Testudines

Sea turtles, tortoises

Squamata

Lizards and Snakes

Suaria

Geckos, lizards, iguanas, chameleons

Serpentes

Snakes, boas, vipers

Sphenodontia

Tuatara

Pterosauria

Pterodactyl

Ornithishia

Stegosaurus, triceratops, parasaurolophus

Saurischia

Velociraptor, tyrannosaur

Proboscidea

Elephants

Sirenia

Manatees

Perissodactyla

Horses

Cetacea

Killer whale

Crocodylia

American Alligator

How’s a tuatara different?

3 eyes, their jaw is their teeth

Difference between an alligators and crocodiles

Alligators have overbite and noticable ISOs

How does a bird regulate body temp

Endotherm + Evaporative Cooling

How does a lizard regulate body temp

Ectotherm + Diverting blood to skin surface

Which animal has the least complicated heart

Fish, runs in a single circuit

Turkey flight origin

Wing Assisted Incline Running

Furcula

Wishbone

Precocial

Independent of parents after hatching

Lek

Male display during breeding season

Allantois

Waste storage in egg

Polygynous

Having more than one female mate