Lab Practicum #3

Question 1

Class Chondrichthyes

Answer 1

shark

Question 2

What is the function of the spiracles?

Answer 2

Allows water to flow into the gill chamber

Question 3

How do you know if a shark is a male or a female?

Answer 3

On the ventral side, there are no claspers on the cloaca if it is a female.

Question 4

Class Octheichthyes

Answer 4

Fish

Question 5

What is the function of the air bladder?

Answer 5

Controls the fish buoyancy.

Question 6

How many chambers does a fish heart have?

Answer 6

2 chambers

Question 7

Class Amphibia

Answer 7

Amphibians

Question 8

What phylum do all of these organisms belong to?

Answer 8

Phylum Chordata

Question 9

what subphyla do all of these organisms belong to?

Answer 9

Subphyla vertebrata

Question 10

what are the three orders in class Amphibia?

Answer 10

Order Gymnophiona, Order Urodela, Order Anura

Question 11

Example of order gymnophiona

Answer 11

Caecilians

Question 12

Example of order Anura

Answer 12

Frogs and Toads

Question 13

Example of order urodela

Answer 13

Salamanders

Question 14

What traits are specific to order Anura

Answer 14

Absence of tail in adulthood

Question 15

What traits are specific to order Urodela

Answer 15

Has tail

Question 16

What traits are specific to order Gymnophiona

Answer 16

without legs

Question 17

how is a frogs tongue unique?

Answer 17

It isn’t attached the way back.

Question 18

Class Reptilia

Answer 18

Reptiles

Question 19

What are the orders of Class Reptilia?

Answer 19

Order Spenodonia(tuatara)
Order Testudines(turtles)
Order Squamata(lizards/snakes)
Order Crocodilia(crocodiles)

Question 20

What traits are specific to Order Spenodonia

Answer 20

No external ears

Question 21

What traits are specific to Order Testudines

Answer 21

Shell

Question 22

What traits are specific to Order Squamata

Answer 22

Scaled skin, snakes- loss of limbs

Question 23

What is Class Aves

Answer 23

birds

Question 24

What are some characteristics that are specific to birds?

Answer 24

scales on legs, beak, toothless, feathers

Question 25

Class Mammalia

Answer 25

mammals

Question 26

What characteristics are specific to mammals

Answer 26

mammary glands, hair

Question 27

What orders are part of Class Mammalia

Answer 27

Order Primate(humans, monkeys)
Order Rodentia(rodents)
Order Carnivora(cheetah, bears, whales)

Question 28

What characteristics are specific to Order Primate

Answer 28

Pentadactyl feet, well developed ulna and radius

Question 29

What characteristics are specific to Order Rodentia

Answer 29

Dentition(teeth) specialized for gnawing.

Question 30

What characteristics are specific to Order Carnivora

Answer 30

Diverse food habitat(mostly carnivorous)

Question 31

Superclass Agnatha

Answer 31

Jawless fish

Question 32

what are the characteristics of chordates?

Answer 32

notochord, pharyngeal slits, dorsal nerve chord, post anal tail

Question 33

What Subphylum’s are in Class Agnatha?

Answer 33

Subphylum Urochordata(tunicates)
Subphylum Cephalachordata(Lancelet)
Subphylum Vertebrata

Question 34

What autapomorphies are there in Subphylum Urochordata?

Answer 34

soft sacklike body with siphons

Question 35

What autapomorphies are there in Subphylum Cephalachordata?

Answer 35

unique filterering system(wheel organ)

Question 36

What autapomorphies are there in Subphylum Vertebrata?

Answer 36

vertebrae, developed brain, neural crest

Question 37

How do tunicates feed?

Answer 37

Trapping food through its siphons