Chapter 34 Vertebrates

Question 0

The dorsal hollow nerve cord develops into what

Answer 0

Central nervous system.

Question 1

What is the notochord?

Answer 1

Flexible rod that supplies structural support

Question 2

What subphylum do tunicates belong to

Answer 2

Urochordata

Question 3

How do tunicates feed?

Answer 3

Suspension feeder

Question 4

What is the function of the tunic in tunicates?

Answer 4

Supports and protects organs

Question 5

What is a pyrosome

Answer 5

Colonial free floating bioluminescent tunicates

Question 6

What chordate characteristic do urochordates have as adults?

Answer 6

Pharyngeal slits

Question 7

What subphylum do lancelets belong to?

Answer 7

Cephalochordata

Question 8

How do lancelets obtain their food?

Answer 8

Suspension feeding

Question 9

How many chordate characteristics do cephalochordates have in adult stage?

Answer 9

All 4

Question 10

Name the four chordate characteristics

Answer 10

Notochord, dorsal hollow nerve cord, pharyngeal slits, muscular post anal tail

Question 11

What is a neural crest?

Answer 11

Mass of cells near the margins of the embryonic foods that form the neural tube

Question 12

Name the 4 characteristics of vertebrates

Answer 12

Cephalization, vertebral column, closed circulatory system, 2 chambered heart

Question 13

What class do hagfishes belong to?

Answer 13

Myxini

Question 14

What is hagfishes main defense mechanism?

Answer 14

Production of slime

Question 15

Name an example of Class Petromyzontida

Answer 15

Lampreys

Question 16

What are the characteristics of lampreys?

Answer 16

Have a notochord, lack jaws.

Question 17

Which evolved first? Agnathans or gnathostomes?

Answer 17

Agnathans

Question 18

When would a Chondrichthyes organism have bones?

Answer 18

In old age when cartilage begins to ossify

Question 19

How many chambers are in the hearts of Chondrichthyes

Answer 19

2

Question 20

Class Chondrichthyes has 2 subclasses. Name examples of each subclass

Answer 20

Sharks, rays, skates. Chimaeras, rat fishes

Question 21

How do sharks maintain buoyancy?

Answer 21

By monitoring levels of oil in their liver.

Question 22

Sharks and fishes benefit from the lateral line system how?

Answer 22

Senses presence of other organisms nearby. Schooling fish

Question 23

Class actinopterygii includes fish with what characteristic

Answer 23

Ray finned fishes

Question 24

Name examples of class actinopterygii

Answer 24

Bass, trout, perch, tuna.

Question 25

What characteristic is class sarcopterygii known for?

Answer 25

Lobe finned fishes.

Question 26

What is an example of order actinistia?

Answer 26

Coelacanths.

Question 27

What is an example of order dipnoi?

Answer 27

Lungfishes

Question 28

What class to orders actinistia and dipnoi belong to?

Answer 28

Sarcopterygii

Question 29

What does the word tetrapoda mean?

Answer 29

Four footed

Question 30

What were the first land vertebrates

Answer 30

Amphibians.

Question 31

How many chambers do amphibians have in their heart

Answer 31

Three

Question 32

What is an example of order Caudata?

Answer 32

Salamanders

Question 33

Order salienta include what animals?

Answer 33

Frogs and toads.

Question 34

Caecilians belong to what order?

Answer 34

Gymnophiona

Question 35

What purpose does the amnion serve?

Answer 35

Protects embryo in amniotic cavity

Question 36

What does the allantois contain

Answer 36

Waste products from the embryo

Question 37

What does the chorion do?

Answer 37

Allows gas exchange

Question 38

How do reptiles exchange gases?

Answer 38

Mostly through lungs

Question 39

How many chambers do most reptiles have in their hearts

Answer 39

Three

Question 40

How do most reptiles bear young?

Answer 40

Oviparous

Question 41

How many chambers are in the hearts of members of order crocodilia

Answer 41

Four

Question 42

Name examples of order testudines

Answer 42

Turtles

Question 43

Name examples of order sphenodontia

Answer 43

Tuataras

Question 44

Name examples of order Squamata

Answer 44

Snakes and lizards

Question 45

Class aves has what two orders?

Answer 45

Carinates- flight birds. Struthioniformes. Flightless birds

Question 46

Class aves has a __ chambered heart

Answer 46

Four

Question 47

How many chambers do mammals have in their heart

Answer 47

Four

Question 48

What benefit does the diaphragm have?

Answer 48

Helps to ventilate the lungs

Question 49

What are monotremes?

Answer 49

Egg laying mammals

Question 50

What is the difference between homodons and heterodons

Answer 50

Homodons have all the same type of teeth. Heterodons have separate types

Question 51

What are eutherians

Answer 51

The placental mammals. Most typical mammals.