Deuterostomes

Question 1

Which of the following is NOT a characteristic of a deuterostome? Largest-bodied, morphologically complex, gut develops from posterior-to-anterior, coelom develops from outpockets of the ectoderm.

Answer 1

Coelom develops from outpockets of the MESODERM.

Question 2

What 3 lineages did we study for deuterostomes? Echino____, hemi_____, and chordata.

Answer 2

Echinodermata , hemi-chordata, and chordata.

Question 3

Echinoderms have a ___ sided radial symmetry.

Answer 3

5

Question 4

Echinoderms have a ____ vascular system.

Answer 4

water

Question 5

What kind of feet do echinoderms have?

Answer 5

tube feet

Question 6

Name some examples of an echinoderm.

Answer 6

Sand dollars, sea urchins/stars/cucumbers/lilies

Question 7

While echinoderm larvae have ____ symmetry, the adults have radial symmetry.

Answer 7

bilateral

Question 8

Echinoderms also have an ____skeleton.

Answer 8

exo

Question 9

Acorn worms are considered to be in what lineage of deuterostomes.

Answer 9

Hemi-chordata

Question 10

Which feature is NOT characteristic of Hemi-chordata? They lack notochord and post-natal tail, they have echinoderm-like larvae, they have DT nerve chord, they don’t have pharyngeal slits.

Answer 10

They DO have pharyngeal slits.

Question 11

Hemi-chordata are considered _____ which means that they live on the bottom of the ocean and feed on organic matter.

Answer 11

Benthic

Question 12

Phylum Chordata all have a notochord, dorsal (hollow) nerve chord, ______ slits, and _____ tail.

Answer 12

pharyngeal, post-natal

Question 13

Pharyngeal slits could be ____ or _____.

Answer 13

gills, pouches

Question 14

The tail extends past the ____, and the dorsal nerve chord expands anteriorly for the ______.

Answer 14

anus, brain

Question 15

Human embryo’s have all four Chordata features, but the tail almost ______.

Answer 15

disappears

Question 16

The leftover portion of the tail might be considered the _____.

Answer 16

Coccyx

Question 17

There are ____ chordates and _____ chordates.

Answer 17

invertebrate, vertebrate

Question 18

Name some invertebrate chordates. _____chordata (lancelets) and uro________ (tunicates).

Answer 18

Cephalochordata, urochordata

Question 19

Lancelets are _____ feeders and fish-like.

Answer 19

filter

Question 20

________ larvae are motile while the adults are sessile. Adults lose ________ and notochord.

Answer 20

Tunicate, tail

Question 21

Vertebrate chordates have either bone or cartilage body-support that protects the ______chord (spinal).

Answer 21

nerve

Question 22

Endoskeleton adaptation: paired ______ (fins, legs, wings), increase in size, and complexity of ______ organs.

Answer 22

appendages, sensory

Question 23

Name one extinct JAWLESS fish.

Answer 23

Ostracoderm

Question 24

One class of EXTANT jawless fish is the group….

Answer 24

Petromyzontoidea (petro-myzon-toidea)

Question 25

Gnathostomes are _____ fish. Its classes are placodermi (extinct) and two others: ______ichthyes (sharkes, skates, rays, etc.) and ____ichthyes (ray-finned, lobe-finned).

Answer 25

Jawed, Chondrichthyes, Osteichthyes

Question 26

Chondrichthyes have a _____ skeleton.

Answer 26

cartilaginous

Question 27

True/False: Ray-finned (actinopterygii) lack the humerus bone.

Answer 27

TRUE

Question 28

What is the sub-class for lobe-finned fish.

Answer 28

Sarcopterygii

Question 29

The lobe-finned fish are in the _____ to amphibians, and do have a ____ bone. A ____ fish is an example of a Sacropterygii.

Answer 29

lineage, humerus, lung

Question 30

Name three animals in class amphibia...

Answer 30

frogs, toads, salamanders

Question 31

Amphibians have whats called a "____ life" and undergo metamorphosis.

Answer 31

double life

Question 32

Amphibian larvae have _____, the adults have ____, and are ____thermic.

Answer 32

gills, lungs, ecto

Question 33

Reptiles have scales made of ______.

Answer 33

keratin

Question 34

Name some animals in class Reptilia.

Answer 34

crocodrilians, turtles, lizards, snakes, etc.

Question 35

Reptiles are ____thermic.

Answer 35

ecto

Question 36

True/False. Reptiles have lungs.

Answer 36

TRUE

Question 37

Draw the amniotic egg.

Answer 37

Make sure you included all features (embryo, yolk, allantois, chorion)

Question 38

The yolk provides the embryo with _____.

Answer 38

nutrients

Question 39

The allantois is for ______.

Answer 39

waste

Question 40

The chorion is for ____ exchange.

Answer 40

gas

Question 41

Albumen in the amniotic egg has ____ for support.

Answer 41

water

Question 42

Class Reptilia and _____ both use an amniotic egg.

Answer 42

Aves

Question 43

Birds in class Aves have feathers made of _____, wings, and are ______ thermic.

Answer 43

keratin, endo

Question 44

In class Mammalia, hair (or fur) is made of _______. Animals have _____ glands, and are _____ thermic.

Answer 44

keratin, mammary, endo

Question 45

Name the sub-classes of Mammalia: pro_____, meta_____ and ____theria.

Answer 45

protheria, metatheria and eutheria

Question 46

Rodentia, Carnivora, Cetacea, Lagomorpha and Primates are all under the subclass __________.

Answer 46

Eutheria

Question 47

Name one transitional species between fish and amphibians.

Answer 47

Tiktaalik

Question 48

True/False: Deuterostomes share key features of embryonic development.

Answer 48

True

Question 49

True/False: The coelom is found in all deuterostome animals.

Answer 49

True

Question 50

Chordates are defined by the presence of four morphological traits: pharyngeal gill slits, a ______ cord, a notochord, and a post-anal tail.

Answer 50

Nerve

Question 51

True/False: The arrangement of bones and the fins of lobe-finned fishes and the limbs of tetrapods is similar.

Answer 51

True

Question 52

What two features are possessed by all vertebrates at some point in their life?

Answer 52

Tail, cranium (sensory organ)

Question 53

Name a JAWLESS fish

Answer 53

Lampreys, hagfish

Question 54

True/False: Reptile skin is made watertight by a layer of scales made of Keratin.

Answer 54

True