Biology Ii Chp. 23

Front 1

Birds are closely related to:

Back 1

Dinosaurs

Front 2

What is found only in birds?

Back 2

Feathers

Front 3

What is found only in birds capable of flight?

Back 3

Carina

Front 4

Birds can maintain a stable body temperature by producing heat within the body. The term for this is:

Back 4

Endothermic

Front 5

In birds the clavicles are fused forming a bone known as a:

Back 5

Furcula

Front 6

What are the adaptations for flight?

Back 6

1) light hollow bones

2) loss of urinary bladder

3) high metabolic rate

Front 7

The fossil bird that was discovered was:

Back 7

Archaeopteryx

Front 8

The flat, distal portion of a feather is known as the:

Back 8

Vane

Front 9

The feathers that give form to the body and are used for flight are:

Back 9

Contour feathers

Front 10

What is a flat , plate like extension of the sternum that serves for the attachment of the powerful flight muscles?

Back 10

Carina

Front 11

What muscles produces the downward stroke of the wing?

Back 11

Pectoralis major

Front 12

What is a muscular part of the bird's stomach that grinds food?

Back 12

Gizzard

Front 13

With respect to the aortic arches found in birds:

Back 13

The right aortic arch persists

Front 14

What are extensions of the lungs of the bird?

Back 14

Air sacs

Front 15

Birds have evolved from :

Back 15

Reptiles

Front 16

What class did birds belong to?

Back 16

Class Aves

Front 17

What class did birds belong to?

Back 17

Class Aves

Front 18

A stiff axial rod

Back 18

Shaft

Front 19

A distal portion of the shaft , angular and solid.

Back 19

Rachis

Front 20

Two rows of branches which arise from the shaft

Back 20

Barbs

Front 21

Two rows of smaller projections which arise from the barbs

Back 21

Barbules

Front 22

Hooklets found on the barbules on the side of the barb toward the tip of the feather.

Back 22

Barbicels

Front 23

Feather develop from pits or follicles in the skin, generally arranged in tracts :

Back 23

Pterylae

Front 24

Feather develop from pits or follicles in the skin, generally arranged in tracts :

Back 24

Pterylae

Front 25

Separated by patches of unfeathered skin :

Back 25

Apteria

Front 26

Feathers that have a large rachis

Back 26

Semiplumes

Front 27

Provide insulation for birds

Back 27

Down feathers

Front 28

Break down to produce an extremely fine white powder composed of granules of keratin.

Back 28

Powder down feathers

Front 29

Break down to produce an extremely fine white powder composed of granules of keratin.

Back 29

Powder down feathers

Front 30

Specialized feathers with a stiff rachis and barbs only on the proximal portion or none at all.

Back 30

Bristles

Front 31

Break down to produce an extremely fine white powder composed of granules of keratin.

Back 31

Powder down feathers

Front 32

Specialized feathers with a stiff rachis and barbs only on the proximal portion or none at all.

Back 32

Bristles

Front 33

A fine hairlike feathers with a shaft with a tuft of short barbs at the tip

Back 33

Filoplume feathers

Front 34

The process in which old or damaged feathers fall out and are replaced with new feathers

Back 34

Molting

Front 35

The ______ system is of birds is adapted for flight and for bipedal locomotion

Back 35

Skeletal

Front 36

The sternum or breastbone bears a _________, which provides a broad area of attachment for the powerful flight muscles.

Back 36

Carina

Front 37

The two clavicles are fused at their ventral ends to form the V-shaped _________ , or "wishbone", attaching to the sternum

Back 37

Furcula

Front 38

A _____________ enables a bird to firmly grip a branch.

Back 38

Perching reflex

Front 39

The ___________ raises the wing

Back 39

Supracoracoideus muscle

Front 40

A small anterior glandular part that secretes gastric juices

Back 40

The proventriculus

Front 41

A small anterior glandular part that secretes gastric juices

Back 41

The proventriculus

Front 42

A glandular pouch of lymphatic tissue that forms as a dorsal outgrowth of the cloaca

Back 42

The bursa of fabricus

Front 43

Windpipe is long and flexible , and reinforced by cartilage

Back 43

Trachea

Front 44

Windpipe is long and flexible , and reinforced by cartilage

Back 44

Trachea

Front 45

The _______ is the voice box

Back 45

Syrinx

Front 46

_________ through which air flows continuously

Back 46

Parabronchi

Front 47

_________ through which air flows continuously

Back 47

Parabronchi

Front 48

Millions of air chambers known as _________

Back 48

Air capillaries

Front 49

_________ through which air flows continuously

Back 49

Parabronchi

Front 50

Millions of air chambers known as _________

Back 50

Air capillaries

Front 51

The lung have extensions known as :

Back 51

Air sacs

Front 52

A high vascularized structure found within the eye that is surrounded by pigmented tissue and covered by a membrane

Back 52

Pecten

Front 53

The ________ of plate like bones that serve to strengthen and focus the large eye

Back 53

Sclerotic ring

Front 54

The ________ of plate like bones that serve to strengthen and focus the large eye

Back 54

Sclerotic ring

Front 55

Female birds have _________ sex

Chromosomes

Back 55

Heterogametic

Front 56

Male birds have ___________ sex chromosomes

Back 56

Homogametic