Question 1

If flight is such an advantage,how do we account for the evolution of flightless birds?

Accepted Answer

A)   They were primitive ancestors of the winged birds
B)   Flight is costly in terms of energy so birds abandon flight if they live in areas with food and without substantial predators, such as islands
C)   This is always an inferior situation if they can't fly, so wingless birds occur only where winged birds are missing
D)   Birds give up flight if they can avoid having to lay eggs
E)   None of the choices are correctF) A) and E)
G) A) and B)

Question 2

What is the function of the large sheet-like pectoralis muscles of a bird?

Accepted Answer

A)   It controls flight by the moving the tail
B)   It moves the neck
C)   It anchors a perching bird's feet
D)   It provides the wing upstroke
E)   It provides the downstroke of the wingF) A) and B)
G) None of the above

Question 3

Which is NOT one of the general features that make birds and reptiles similar?

Accepted Answer

A)   Both birds and nonavian reptiles have a single middle ear bone
B)   The skulls articulate with the first neck vertebra by a single occipital condyle
C)   Both have a lower jaw composed of five or six bones
D)   Both birds and reptiles lay eggs and the early embryo develops on the surface by shallow cleavage divisions
E)   All of the choices are similarities that distinguish birds and reptiles from mammalsF) A) and B)
G) B) and E)

Question 4

An example of a bird with high-aspect ratio or soaring wings would be

Accepted Answer

A)   a humming bird.
B)   a woodpecker.
C)   a hawk.
D)   an albatross.
E)   All of the choices are correctF) B) and C)
G) A) and C)

Question 5

Why have birds not evolved a wing design that allows for the best of all properties including fast and slow flight,soaring and flapping,all in one bird?

Accepted Answer

Birds have not evolved a wing design tha...

Question 6

The common chamber that receives material from the digestive,excretory,and reproductive system is the ____________.

Accepted Answer

The answer of The common chamber that receives material from...

Question 7

The geological age when birds first arose is called ____________.

Accepted Answer

The answer of The geological age when birds first arose...

Question 8

Flying birds with keeled sternums are known as Neognathae or ___________.

Accepted Answer

The answer of Flying birds with keeled sternums are known...

Question 9

The major nitrogenous waste excreted by the bird kidney is ______ ______.

Accepted Answer

The answer of The major nitrogenous waste excreted by the...

Question 10

Which type of feathers are long and extend beyond the body for lift?

Accepted Answer

A)   Altricial feathers
B)   Powder-down feathers
C)   Filoplume feathers
D)   Down feathers
E)   Flight feathersF) All of the above
G) A) and E)

Question 11

The seasonal loss of bird feathers is _____________.

Accepted Answer

The answer of The seasonal loss of bird feathers is...

Question 12

Discuss the derived characters shared by birds with theropods such as Velocirapor.How do the newly discovered Chinese fossils such as Protarchaeopteryx,Caudipteryx,and Sinosauropteryx fit into the evolutionary picture of birds?

Accepted Answer

Birds and theropod dinosaurs, such as Ve...

Question 13

Predatory,land-soaring birds have wing types that are referred to as ______________ wings.
or
high lift

Accepted Answer

The answer of Predatory,land-soaring birds have wing types that are...

Question 14

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

Accepted Answer

The answer of The integration of muscle-position sense,equilibrium sense,and visual...

Question 15

Evidence indicates that birds are the sister group of the

Accepted Answer

A)   pterosaurs.
B)   theropod dinosaurs.
C)   therapsid reptiles.
D)   stem diapsids.
E)   anaspids.F) B) and E)
G) A) and E)

Question 16

Bird mating is unique since

Accepted Answer

A)   the male copulatory organ is kept folded internally.
B)   mating is primarily a matter of bringing male cloaca to female cloaca.
C)   fertilization is completely external.
D)   All of the choices are correct
E)   None of the choices are correctF) All of the above
G) B) and C)

Question 17

If it is an advantage to be a food specialist and thereby avoid the extra competition that generalists face from other generalists,then why aren't all birds specialists?

Accepted Answer

The question of why all birds aren't spe...

Question 18

Flightless birds

Accepted Answer

A)   have evolved mostly on islands without predators.
B)   include the ratite or paleognathous birds.
C)   have appeared independently in many different groups of birds.
D)   tend to become large.
E)   All of the choices are correctF) None of the above
G) B) and E)

Question 19

The thick thigh and skinny lower leg of a bird,as in the case of a chicken leg,is an advantage because it

Accepted Answer

A)   loads the muscle mass near the body's center of gravity for flight.
B)   only leaves bone, tendon and tough skin exposed to freezing conditions.
C)   keeps the slender, lightweight feet from being muscle-bound and restricted.
D)   All of the choices are advantages
E)   None of the choices are correctF) A) and B)
G) A) and E)

Question 20

Feathers are

Accepted Answer

A)   living structures that continue to grow longer as the bird gets older.
B)   never shed, except by accident.
C)   shed in a highly orderly manner.
D)   usually shed all at once, and then gradually replaced.
E)   Replaced only after one is lostF) A) and B)
G) A) and C)

Exam 27: Birds

Which is NOT one of the general features that make birds and reptiles similar?

Correct AnswerverifiedShow Answer

Which type of feathers are long and extend beyond the body for lift?

Correct AnswerverifiedShow Answer

The thick thigh and skinny lower leg of a bird,as in the case of a chicken leg,is an advantage because it

Correct AnswerverifiedShow Answer

Predatory,land-soaring birds have wing types that are referred to as ______________ wings. or high lift

Correct AnswerverifiedShow Answer

What is the function of the large sheet-like pectoralis muscles of a bird?

Correct AnswerverifiedShow Answer

An example of a bird with high-aspect ratio or soaring wings would be

Correct AnswerverifiedShow Answer

The seasonal loss of bird feathers is _____________.

Correct AnswerverifiedShow Answer

The common chamber that receives material from the digestive,excretory,and reproductive system is the ____________.

Correct AnswerverifiedShow Answer

If flight is such an advantage,how do we account for the evolution of flightless birds?

Correct AnswerverifiedShow Answer

If it is an advantage to be a food specialist and thereby avoid the extra competition that generalists face from other generalists,then why aren't all birds specialists?

Correct AnswerAnswered by ExamLex AIThe question of why all birds aren't spe...View AnswerShow Answer

Discuss the derived characters shared by birds with theropods such as Velocirapor.How do the newly discovered Chinese fossils such as Protarchaeopteryx,Caudipteryx,and Sinosauropteryx fit into the evolutionary picture of birds?

Correct AnswerAnswered by ExamLex AIBirds and theropod dinosaurs, such as Ve...View AnswerShow Answer

Evidence indicates that birds are the sister group of the

Correct AnswerverifiedShow Answer

The geological age when birds first arose is called ____________.

Correct AnswerverifiedShow Answer

The major nitrogenous waste excreted by the bird kidney is ______ ______.

Correct AnswerverifiedShow Answer

Flightless birds

Correct AnswerverifiedShow Answer

Bird mating is unique since

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Why have birds not evolved a wing design that allows for the best of all properties including fast and slow flight,soaring and flapping,all in one bird?

Correct AnswerAnswered by ExamLex AIBirds have not evolved a wing design tha...View AnswerShow Answer

Feathers are

Correct AnswerverifiedShow Answer

Flying birds with keeled sternums are known as Neognathae or ___________.

Correct AnswerverifiedShow Answer

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Correct Answer
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Correct Answer
Answered by ExamLex AI
The question of why all birds aren't spe...
View Answer

Correct Answer
Answered by ExamLex AI
Birds and theropod dinosaurs, such as Ve...
View Answer

Correct Answer
verified

Correct Answer
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The major nitrogenous waste excreted by the bird kidney is .

Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Birds have not evolved a wing design tha...
View Answer

Correct Answer
verified

Correct Answer
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