Deck 19: Birds

Question 1

A wing slot placed along the leading edge of the wing helps to prevent stalling at low speeds.

Answer 1

True

Question 2

Some birds,like hummingbirds and ducks,can see in the ultraviolet spectrum.

Answer 2

True

Question 3

The bird feather consists of barbs with barbules that bear tiny hooks that interlock.

Answer 3

True

Question 4

The major stimulus for spring migration in birds is increasing day length in late winter and early spring.

Question 5

Most species of birds tend to be nonsocial.

Question 6

Like modern birds,Archaeopteryx had a sternum and a furcula.

Question 7

Most male birds have a retractable penis used to inseminate the female during copulation.

Question 8

The respiratory system of birds is structured in such a way that the lungs receive fresh air during both inspiration and expiration.

Question 9

Birds typically molt their feathers in the fall,right before migration.

Question 10

Birds,like reptiles,excrete uric acid as the major nitrogenous waste.

Question 11

Archaeopteryx had teeth set in sockets,whereas modern birds are completely toothless.

Question 12

The most common type of mating system in birds is monogamy,in which the male mates with only one female during the mating season.

Question 13

Birds,like mammals,have non-nucleate,biconcave erythrocytes.

Question 14

The wing of a modern bird shows fusion and reduction of skeletal elements.

Question 15

Mature feathers are dead structures and must be replaced at regular intervals.

Question 16

The supracoracoideus muscles raise the wings in flight.

Question 17

Because of the demands of flight,the circulatory system of birds is very different from that of mammals.

Question 18

Most of the birds that migrate breed in the more southern latitudes of the Earth.

Question 19

In birds,reproductive organs of both sexes shrink to vestigal structures during the nonbreeding season.

Question 20

The raptors,such as hawks and eagles,are notable in their well-developed senses of smell and taste.

Question 21

Birds are

A)synapsids.
B)diapsids.
C)anapsids.
D)aviapsids.

Question 22

Bird species far outnumber all other vertebrates except the

A)mammals.
B)reptiles.
C)amphibians.
D)fishes.

Question 23

Flying birds with keeled sternums are known as ___________.

Question 24

Flightless birds

A)tend to be small.
B)have a well-developed sternum.
C)have well-developed pectoral muscles.
D)typically live on islands.

Question 25

The famous fossil bird that supports the theory for the reptilian ancestry of birds is ____________,a name that means 'ancient wing.'

Question 26

An example of a bird with soaring wings is

A)a hummingbird.
B)a woodpecker.
C)a hawk.
D)an albatross.

Question 27

The muscle which raises the wing of a bird is located

A)on the back.
B)on the chest.
C)in the upper arm.
D)in the lower arm.
Fill in the Blank Questions

Question 28

The stomach of a bird is comprised of the enzyme-secreting proventriculus and the muscular ____________.

Question 29

The large breast muscle that depresses the wing during flight is the _________.

Question 30

The movement of air over the upper curved surface of the wing causes

A)lift.
B)drag.
C)stalling.
D)drift.

Question 31

The digestive system contributes to the success of birds as flying animals because

A)it is long.
B)it has a crop.
C)it digests food quickly.
D)it is penetrated by air sacs.

Question 32

The enlargement at the lower end of the esophagus that serves as a food storage chamber in birds is called the ___________.

Question 33

Most paleontologists agree that birds descended from a lineage of dinosaurs called ___________.

Question 34

The nervous system contributes to the success of birds as flying animals because of

A)the well-developed integrative center of the brain that controls eating,singing,and flying.
B)the well-developed center used to coordinate movement and balance.
C)the well-developed optic lobes.
D)all of these

Question 35

The flightless birds

A)have evolved mostly on islands.
B)are paleognathous birds.
C)have appeared independently in many different groups of birds.
D)all of the above.

Question 36

The reason that the majority of birds are polygamous is that both parents are required for care of the young.
Multiple Choice Questions

Question 37

A unique feature of the respiratory system in birds is the extensive system of nine interconnecting ____________.

Question 38

In migration,birds use

A)an innate direction sense.
B)the stars at night for navigation.
C)the sun by day for navigation.
D)all of these

Question 39

An example of a bird with high-lift wings is

A)a hummingbird.
B)a woodpecker.
C)a hawk.
D)an albatross.

Question 40

Because the kidney of sea birds cannot concentrate salt in the urine,excess sodium chloride is removed by special ___________ located above the bird's eyes.

Question 41

The photoreceptors in the retina that are more numerous in nocturnal birds are the ________.

Question 42

Domesticated fowl aside,the starlings and the _____________ have become the two most abundant bird species on Earth,due to introduction to various countries.

Question 43

The integration of muscle-position sense,equilibrium sense,and visual cues for movement and balance occurs in the __________ of the bird's brain.

Question 44

Predatory,land-soaring birds have wing types that are referred to as _____________ wings.

Question 45

Newly hatched birds that are covered with down and are active within a short time after hatching are called _____________.

Question 46

Birds which spend summers in North America tend to overwinter in South America;birds which summer in Europe tend to overwinter in _______________.

Question 47

The __________,a group of small feathers on the first digit (or "thumb")of the bird's wing,functions to prevent stalling at low flight speeds.

Question 48

In flapping flight,the feathers at the wing tips that generate thrust are the ___________ feathers.

Question 49

The bird that makes the longest known migrations of any bird,between the Arctic and the Antarctic,is the _____________.

Question 50

The _______________ of the bird receives products from the digestive,urinary,and reproductive systems.

Question 51

Declines of waterfowl in the U.S.may be attributed to accidental ingestion of _______.

Question 52

The high-speed wings of plovers and sandpipers have swept-back wings that come to a tip,an adaptation that reduces drag-creating turbulence called ____________.