Zoo 22-23

Question 0

Deuterostome

Answer 0

Blastopore becomes anus

Question 1

Echinoderm meaning

Answer 1

“Spiny skin”

Question 2

Protostome

Answer 2

Blastopore becomes mouth

Question 3

Symmetry of Chordates

Answer 3

Bilateral

Question 4

Symmetry of Echinoderms

Answer 4

Bilateral morphed into radial (multiples of 5)

Question 5

Blastopore

Answer 5

Opening of archenteron

Question 6

5 classes of Echinodermata

Answer 6

Asteroidea
Ophiuroidea
Echinoidea
Holothuroidea
Crinoidea

Question 7

Pedicellariae

Answer 7

Tiny jaws at base of spine to protect/keep free of debris/aid in food capture

Question 8

Metamorphosis

Answer 8

Radical body change

Question 9

Members of Echinoidea

Answer 9

Sea urchins, sand dollars, heart urchins

Question 10

Test

Answer 10

Hard shell underneath skin

Question 11

Periproct

Answer 11

Area of anus on aboral surface

Question 12

Members of Ophiuroidea

Answer 12

Brittle star

Question 13

Madreporite

Answer 13

Plate for entryway of water on oral surface

Question 14

Papillae

Answer 14

Protrusion on organ of body

Question 15

Classification of brittle star

Answer 15

Animalia
Echinodermata
Ophiuroidea
Ophiurida

Question 16

Classification of sea urchin

Answer 16

Animalia
Echinodermata
Echinoidea
Camarodonta

Question 17

Classification of sand dollar

Answer 17

Animalia
Echinodermata
Echinoidea
Clypeasteroida

Question 18

Classification of sea cucumber

Answer 18

Animalia
Echinodermata
Echinozoa
Holothuroidea

Question 19

Ossicles

Answer 19

Plates bound by tissues

Question 20

Respiration of echinoderms

Answer 20

Dermal brachia

Question 21

Metameres

Answer 21

Similar body segments

Question 22

Echinoderms lack what 4 parts

Answer 22

Metameres, brain, head region, excretory organs

Question 23

Parts echinoderms have

Answer 23

1) Endoskeleton of ossicles
2) WV system (tube feet/suction)
3) Pedicellariae
4) Complete digestive/hemal system
5) External fertilization/separate sexes
6) Regeneration

Question 24

Purpose of tube feet

Answer 24

Movement and digestion

Question 25

How to tell gender of echinoderms

Answer 25

Cut into arms to find sperm/eggs

Question 26

Ecology of echinoderms

Answer 26

Marine, saltwater (oceans), all depths | -predators, particle feeders, one is scavenger

Question 27

Two main similarities of Echino/chor

Answer 27

Both dueterostomes and once had same symmetry

Question 28

Placement of 2 phylums

Answer 28

Link between vertebrates and invertebrates

Question 29

What does class Echinoidea lack

Answer 29

Arms

Question 30

Echinoidea have...? (2)

Answer 30

Periproct and test

Question 31

Shape/features/symmetry of urchins

Answer 31

Spherical, radial symmetry, medium/long spines, 5 pairs of rows of tube feet

Question 32

Environment of urchins

Answer 32

Wavy, rocky areas

Question 33

Features/symmetry of sand dollar

Answer 33

Flat, flat test, radial, no spines, have pedicellariae

Question 34

Environment of sand dollar

Answer 34

Ocean floor, buried in sand

Question 35

Main features of Echinoidea (5)

Answer 35

1) 5 teeth 2) Aristotle's lantern 3) Coiled digestive system 4) External fertilization 5) Closed ambulacral grooves

Question 36

Aristotle's lantern

Answer 36

Where teeth attach near mouth in Echinoidea

Question 37

Class that's greatest in number

Answer 37

Ophiuroidea

Question 38

Characteristics of arms of Ophiuroidea

Answer 38

No pedicellariae or papillae, closed ambulacral grooves, covered with ossicles, very flexible

Question 39

Movement of Ophiuroidea

Answer 39

Flexible arms to pull around

Question 40

Characteristics of Ophiuroidea

Answer 40

1) 5 moveable plates for jaws 2) No anus so no intestines 3) External fertilization/separate sexes 4) In deep water where no light

Question 41

Shape of Holothuroidea

Answer 41

Resemblance of vegetables, elongated

Question 42

External features of Holothuroidea

Answer 42

Short ossicles (softer), tube feet located near mouth (sole), tentacles around mouth

Question 43

Internal features of Holothuroidea

Answer 43

Coelem contains madreporite, digestive system empties into cloaca

Question 44

Cloaca

Answer 44

Collecting center for reproduction and waste

Question 45

Eviscerate

Answer 45

Throwing up organs as defense

Question 46

Defense of Holothuroidea

Answer 46

Eviscerate- can regenerate

Question 47

Members of Crinoidea

Answer 47

Sea lilies, feather stars

Question 48

Features of Crinoidea

Answer 48

1) Primitive 2) Attached to something 3) Deep water 4) Appendages x5 5) Body disc/plates for attachment 6) Mouth/anus on oral surface 7) Common fossils

Question 49

What Crinoidea is missing

Answer 49

1) Tubefeet 2) Madreporite 3) Pedicellarae 4) Spines

Question 50

Members of Asteroidea

Answer 50

Sea stars

Question 51

External features of Asteroidea

Answer 51

1) Radial (x5) 2) Central disc 3) Epidermis over spine covered ossicles 4) Tube feet on ambulacral groove

Question 52

Stereom

Answer 52

Internal mesh work structure in Asteroidea

Question 53

Features on aboral side of Asteroidea

Answer 53

Anus, pedicellariae, papillae (help w/ respiration), madreporite

Question 54

Internal features of Asteroidea

Answer 54

1) 2 stomachs (cardiac/pyloric) 2) Water vascular system 3) Hemal system 4) Nervous system 5) Separate sexes (external fertilization)

Question 55

Purpose of water vascular system

Answer 55

Movement, food gathering, excretion, respiration

Question 56

Autonomy

Answer 56

Regeneration from just an arm

Question 57

Hemal system of Asteroidea

Answer 57

?

Question 58

Nervous system of Asteroidea

Answer 58

?

Question 59

Ambulacral groove

Answer 59

Ridges along aboral side of arms

Question 60

8 Characteristics of phylum Chordata

Answer 60

1) Bilateral symmetry 2) Notochord 3) Dorsal tubular nerve cord 4) Pharyngeal pouches 5) Endostyle/thyroid gland 6) Postanal tail 7) Complete digestive system 8) Segmentation

Question 61

Notochord

Answer 61

?

Question 62

3 subphylums of Chordata

Answer 62

1) Cephalachordata 2) Urochordata 3) Vertebrata