Review Lec Exam 1

Question 1

How many classes of jawed living fish are there?

Answer 1

2 Class Myxini and Cephalospidomorphi

Question 2

What species concept is based on Carolus Linnaeus’ book?

Answer 2

Typological species concept

Question 3

What type of scientist studies lampreys?

Answer 3

Ichthyologist

Question 4

T/F blastopore forms the anus in tunicates

Answer 4

True its a deuterostome

Question 5

What is advanced in fishes: spiral valve or no spiral valve

Answer 5

No spiral valve

Question 6

What is the term for organisms that have a variable body temp?

Answer 6

Poikilotherms

Question 7

T/F The biological species concept accepts intergradation (mixing of subspecies)

Answer 7

True because ability to breed determines species

Question 8

T/F Freshwater and saltwater fish actively pump ammonia out of the gills?

Answer 8

f

Question 9

What class are ratfish in?

Answer 9

Chondrichtyes

Question 10

T/F Lungfish have one atrium

Answer 10

ALL fish have one atrium

Question 11

Being able to reproduce in the larval stage is called

Answer 11

neoteny

Question 12

Which fish group came first

Answer 12

ostracoderms

Question 13

Name a physostomous (intake air through esophagus, enter bladder through pneumatic duct) fish group

Answer 13

Lungfish, Gars, Bowfins

Question 14

T or F Freshwater fish drink water saltwater fish don’t

Answer 14

F Freshwater fish never drink water and pee alot

Question 15

How many living classes of vertebrates are there?

Answer 15

8

Question 16

What is primitive spiracle or no spiracle?

Answer 16

no spiracle

Question 17

Name an animal phylum where we see spiral cleavage

Answer 17

Annelida, Mollusca, Arthropoda

Question 18

t/f the evolutionary species concept doesn’t accept hybridization

Answer 18

false

Question 19

Of the two fish groups with swim bladders, which has a pneumatic duct

Answer 19

Physostomous

Question 20

What ray-finned fish superorder is the most advanced?

Answer 20

Teleostei

Question 21

What substance makes sharks buoyant?

Answer 21

Squalene

Question 22

Which primitive subphylum of chordate didn’t give rise to vertebrates

Answer 22

Cephalochordata

Question 23

t/f sharks sink faster in freshwater

Answer 23

True

Question 24

t/f more described amphibian species than mammal species

Answer 24

true

Question 25

What substance do stingrays store in their muscles to help with osmoregulation

Answer 25

urea

Question 26

Which hemichordate group is closest related to chordates?

Answer 26

Pterobranchs