Ch 21C

Question 1

6 Phylum Chordata characteristic

Answer 1

-vertebrates
-notochord (at least in embryonic stage)
-dorsal hollow nerve chord
-pharyngeal slits
-postanal tail
-deuterostome development

Question 2

Two invertebrate chordates

Answer 2

tunicates and lancelets (aquatic, no cranium)

Question 3

How many vertebrate chordates are there and what are they?

Answer 3

5: Fish, amphibians, reptiles, birds, mammals

Question 4

3 types of fish bodies

Answer 4

jawless, cartilaginous, and bony

Question 5

Are fish cold-blooded?

Answer 5

Yes!

Question 6

Two kinds of jawless fish

Answer 6

Hagfish and Lampreys

Question 7

Are jawless fish vertebrates?

Answer 7

No, but they have a cranium surrounding the brain

Question 8

What are jawless fish skeleton made up of?

Answer 8

Cartilage

Question 9

Jawfish body makeup

Answer 9

Slender, cylindrical bodies, round muscular mouth adapted for sucking

Question 10

2 kinds of cartilaginous fish

Answer 10

sharks and rays

Question 11

Cartilaginous fish skin

Answer 11

covered withh scales

Question 12

Cartilaginous fish teeth

Answer 12

modifies scales

Question 13

Largest sharks and size

Answer 13

basking and whale sharks (up to 45 feet)

Question 14

Bony Fish

Answer 14

majority of fish

Question 15

3 types of amphibians

Answer 15

salamanders, frogs, and caecillians

Question 16

Are amphibians tetrapods?

Answer 16

Yes

Question 17

First group of animals with vocal chords

Answer 17

amphibians

Question 18

6 types of reptiles

Answer 18

alligators, crocodiles, snakes, lizards, turtles, birds

Question 19

First group to have amniotic eggs

Answer 19

reptiles

Question 20

Why do reptiles have dry, waterproof skin

Answer 20

to allow to be completely terrestrial

Question 21

Who were the first vertebrate on dry land?

Answer 21

Reptiles

Question 22

4 things all birds have

Answer 22

feathers, hollow bones, no teeth, most capable of flight

Question 23

What does the name mammal refer to?

Answer 23

Mammary glands

Question 24

Phylum Echinodermata

Answer 24

sea stars, brittle stars, sea urchin, sea cucumber, sand dollar

Question 25

what does echinodermata mean

Answer 25

spiny skin

Question 26

echinodermata symmetry

Answer 26

radial as adult, bilateral as larvae

Question 27

water vascular system

Answer 27

system of canals in echinoderms that assist with gas exchange, locomotion and basically everything

Question 28

2 kinds of bony fish

Answer 28

ray-finned and lobe-finned (lobe-finned inclue coelacanths which are living fossils)

Question 29

Are hagfish vertebrate?

Answer 29

No

Question 30

Are lampreys vertebrate?

Answer 30

yes

Question 31

monotremes

Answer 31

mammals that lay eggs