BIO CH. 28 Vertebrates

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Which of the following were among the first vertebrates to evolve teeth?

Sharks

Which of the following groups of fishes include the jawless fishes?

Spiny fishes hagfish lampreys

Which of the following features evolved from rough scales on the skin?

Teeth

The evolution of the first vertebrates occurred in which of the following places?

The ocean

Which of the following is true of both the nonvertebrate chordates Urochordata and Cephalochordata

They have a notochord

Choose features of the primitive vertebrates that first appeared in the Cambrian

They were jawless they were small (less than 30cm long) they had a head and primitive tail

.....have a chordate larval forms, which metamorphose into sessile, filter feeding adults that bear primitive resemblance to other chordates

Tunicates

Despite how different their sessile, filter-feeding adult forms seem, larval.....clearly display chordate features

Tunicates

Select the features that are shared by all vertebrate chordates but are not found in no vertebrate chordates

Well developed internal organs endoskeleton neural crest vertebral column head

Which of the following features are unique to vertebrate chordates?

A distinct head vertebrae

The skeleton of the Chondrichthyans is made of which of the following?

Cartilage

Lancelets, which are members of the subphylum.... are small, marine chordates

Cephalochordata

Lancelets belong to which phylum?

Chordata

Two important characteristics that distinguish vertebrates from other chordates are the presence of a distinct.....and a vertebral....

Head column

Which of the following is not one of the five key features of fish?

Internal organs

Match each fish with its description

Lungfish - largely extinct of bony fishes that can breath air and live out of water for extended periods of time ray-finned fishes - most diverse group of vertebrates; swim bladder and bony skeletons sharks,skates,rays - cartilaginous skeleton, no swim bladders; internal fertilization lampreys - mostly extinct group of jawless fishes with no paired appendages; parasitic and nonparasitic hagfishes - jawless fishes with no ladies appendages; scavengers; mostly blind Armored fishes - jawed fishes with heavily armored heads spiny fishes - fishes with or without jaws; paired fins supported by sharp spines; head shields made of bone

Which of the following is not a characteristic of vertebrates that distinguishes them from the nonvertebrate chordates?

Notochord

Which of the following are key (defining) features of jawed fishes?

Nutritional deficiencies a vertebral column internal gills single- looped circulation paired appendages


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