Question 1

The one unique feature that separates living species of birds from other animals is ________.

Accepted Answer

The answer of The one unique feature that separates living...

Question 2

The most complex and delicate muscles in a bird are located in the

Accepted Answer

A)  leg. 
B)  wings. 
C)  neck and tail. 
D)  beak. 
E)  reproductive area. 
A)  leg. 
B)  wings. 
C)  neck and tail. 
D)  beak. 
E)  reproductive area.

Question 3

Archaeopteryx resembled modern birds in having

Accepted Answer

A)  a large keel or breastbone for pectoral muscle insertion. 
B)  pneumatic bones. 
C)  fused clavicles or "wishbone." 
D)  a beak. 
E)  All of the choices were Archaeopteryx features 
A)  a large keel or breastbone for pectoral muscle insertion. 
B)  pneumatic bones. 
C)  fused clavicles or "wishbone." 
D)  a beak. 
E)  All of the choices were Archaeopteryx features

Question 4

The distribution of weight in the bird skeleton is

Accepted Answer

A)  top-heavy to improve flight. 
B)  heavier compared to a mammal of the same size, since a bird has to be lightweight to fly. 
C)  similar to or lighter in overall weight than a mammal, but heavier in the leg bones, which lowers the bird's center of gravity. 
D)  loaded into a heavier bird skull, since the high speed requires a "safety helmet." 
E)  roughly the same as a mammal of the same size. 
A)  top-heavy to improve flight. 
B)  heavier compared to a mammal of the same size, since a bird has to be lightweight to fly. 
C)  similar to or lighter in overall weight than a mammal, but heavier in the leg bones, which lowers the bird's center of gravity. 
D)  loaded into a heavier bird skull, since the high speed requires a "safety helmet." 
E)  roughly the same as a mammal of the same size.

Question 5

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 _______ _______.

Accepted Answer

The answer of The high-speed wings of plovers and sandpipers...

Question 6

Birds have highly developed eyes that help them

Accepted Answer

A)  locate mates. 
B)  fly through the air at a fast speed. 
C)  locate food from a distance. 
D)  avoid predators and defend territory. 
E)  All of the choices are correct 
A)  locate mates. 
B)  fly through the air at a fast speed. 
C)  locate food from a distance. 
D)  avoid predators and defend territory. 
E)  All of the choices are correct

Question 7

Trace the air flow through a bird from inhaling to exhaling,indicating where absorption of gases occurs and for what percent of the time.Why does it take two cycles of breathing to move a molecule in the air through this system?

Accepted Answer

When a bird inhales, air enters through

Question 8

Bird species outnumber species in all other vertebrate groups except the

Accepted Answer

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

Question 9

Migration in birds

Accepted Answer

A)  is inborn and instinctive. 
B)  allows these organisms to live in favorable climates and use more resources. 
C)  is triggered by external stimuli such as day length. 
D)  is closely linked to reproductive cycles. 
E)  All of the choices are correct 
A)  is inborn and instinctive. 
B)  allows these organisms to live in favorable climates and use more resources. 
C)  is triggered by external stimuli such as day length. 
D)  is closely linked to reproductive cycles. 
E)  All of the choices are correct

Question 10

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

Accepted Answer

The answer of Most paleontologists agree that birds descended from...

Question 11

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

Accepted Answer

The answer of The photoreceptors in the retina that are...

Question 12

Detail four non-trivial likely reasons for the recent decline in songbirds.

Accepted Answer

1. Habitat loss: The destruction and fra

Exam 27: Birds

The one unique feature that separates living species of birds from other animals is ________.

The most complex and delicate muscles in a bird are located in the

Archaeopteryx resembled modern birds in having

The distribution of weight in the bird skeleton is

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 _______ _______.

Birds have highly developed eyes that help them

Trace the air flow through a bird from inhaling to exhaling,indicating where absorption of gases occurs and for what percent of the time.Why does it take two cycles of breathing to move a molecule in the air through this system?

Bird species outnumber species in all other vertebrate groups except the

Migration in birds

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

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

Detail four non-trivial likely reasons for the recent decline in songbirds.

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

Chaetognaths, Echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Mammals

Support, protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distributions

Animal Ecology

Filters

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 _ _.