Exam 21: Birds: Reptiles by Another Name

The activity by which birds maintain a clean plumage and rid the feathers and skin of parasites is referred to as

The __________,or "wishbone," of a bird is formed from the paired clavicles.

Which of the following features of birds is NOT an adaptation for flight?

A type of flight commonly used by hummingbirds is __________ flight.

Anting,a common habit of many songbirds,involves picking up ants with their beaks and rubbing them over the feathers.__________ secreted by the ants is apparently toxic to feather mites.

Posteriorly directed __________ on the ribs of birds overlap the next posterior rib and strengthen the rib cage.

A reptilian characteristic of Archaeopteryx was

A group of eggs laid by a female bird is called a

Over 90% of all birds are

The respiratory system of birds differs from that of most other reptiles.All of the following statements regarding gas exchange in birds vs.other reptiles are true except one.

Fusion of posterior thoracic vertebrae,all lumbar vertebrae,all sacral vertebrae,and the anterior caudal vertebrae forms the __________ in birds.

__________ refers to periodic round trips between breeding and non-breeding areas.

The most developed regions of the brain of birds,including the corpus striatum and the midbrain,reflect a bird's reliance on

Interpretations of the life-style of the fossilized theropods have been important in the development of hypotheses on the

Which of the following is LEAST well developed in most birds?

A bird species is found in a region where food resources are relatively abundant,but patchy in distribution.Nests are found near these resource patches.Many individuals are attracted to these nesting and feeding areas.Which of the following reproductive patterns is likely to be true of this species?

All birds are

Birds with long tongues include

The wings of a bird function as a(n)

Albeit rare,a few bird species are ________________,in which females mate with more than one male.