Enchinodermata Flashcards Preview

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Flashcards in Enchinodermata Deck (70):
1

Intervertebrates

Without backbone

2

Intervertebrates includes

Arthropoda

3

Whats arthropoda ?

Animals with jointed legs/ appendages

4

Interverbrates also include _____
Arthropoda and _______^

Echinodermata

5

What is echinodermata?

"Spiny skin"

6

What is endoskeleton ?

Internal skeleton

7

What is an endoskeleton formed from?

Formed from hardened plates of calcium carbonate

8

Echinodermata are ________________ animals

Sea dwelling

9

Echinodermata have _____ skin

Spiny

10

Where is the mouth found on a echinodermata

Found on "oral surface"

11

Side opposite of mouth is called the

Aboral surface

12

Echino- what system

Water vascular system

13

A suction-cup like structure

Tube feet

14

Most Echinoderms have ____ symmetry

5 part radial symmetry

15

Anus first , mouth last in development

Deuterostomes

16

Most closely related phylum to _____

Humans

17

Larvae have ____ symmetry

Bilateral

18

The water vascular system is a system of

Internal tubes

19

They are filled with ___

Fluid

20

The internal tubes are used for

Respiration, circulation, and movement

21

System opens to outside through a sieve-like structure called

A madreporite

22

Madreporites are attached to

Ring canal

23

Ring canal connects to _____ to extend into ________

Radial canal
Body segments

24

Tube feet are attached to ____ for (3)

Ring canal
Attachment, movement, and predation

25

Feeding:

5-part jaw-like structure

26

Feeding: sea urchins for scrapping _____

Algae

27

Feeding: sea lilies capture floating _____

Plankton

28

Feeding: sea cucumbers ingest

Sand and detritus

29

Sea stars friend: pry open ____ to extend ___ outside of body through mouth to release ___ to digest mollusk

Bivalve
Stomach
Enzymes

30

After sea star eating and digesting ____, they pull digest prey into ___ and into ______

Mollusk
Stomach
Mouth

31

The ____________ is used for respiration and circulation

Water vascular system

32

In most species: Tube feet provides

Surface for gas exchange

33

In some species: have skin gills for

Respiration

34

What travels through body via water vascular system

Nutrients, oxygen, and wastes

35

Ammonia is

Pee

36

Digestive wastes released through

Anus

37

Ammonia from _______ is released outside body through _____ & _______

Cellular metabolism
Tube feet
Skin gills

38

What is not well developed

Nervous system

39

Most echinoderms have ______ that surrounds mouth

Ring nerve

40

Radial nerve extends from ______ to _______

Ring nerve to body sections

41

Also have scattered sensory cells that detect (3)

Light
Gravity
Chemicals released by prey

42

What facilitate movement in most echinoderms

Tube feet

43

Mobility is determined by

Endoskeleton

44

Movement: sand dollars and sea urchins have

Moveable spines attached to endoskeleton

45

Sea stars and brittle stars have

Flexible joints in arms for locomotion

46

Sea cucumbers have reduced _________ contained in muscular ______ and also have _______ which allows animal to crawl along sea floor

Endoskeletal plates
Body walls
Tube feet

47

Echinoderms have ___ fertilization

External

48

Sperm produced in
Eggs produced in

Testes
Ovaries

49

# species

7000

50

Groups of echinoderms 5

Sea urchins & sand $
Brittlestars
Sea cucumbers
Sea stars
Sea lilies & feathers stars

51

Sea urchins and sand $: have large solid _____ that surround box around _______

Plates
Internal organs

52

Sea urchins & sand $: eating: _____ or grazers of ______

Detrivores
Algae

53

Sea urchins & sand $: defence mechanisms (3)

Buries in sand
Buries in tight crevices
Spines

54

Brittle stars: ____,____,_____ arms

Long, slender, flexible

55

Brittlestar denfense mechanisms: (2)

Move quickly
Shed arms when attached

56

Brittle stars feeding: (2)

Filter feeders
Detrivores

57

Brittle stars are _

Nocturnal

58

Sea cuc: feeding :

Detrivores

59

Sea cuc: defence mechanisms: (2)

Hide
Expel stomach when attacked

60

Sea stars have more than # species

2000

61

Sea stars: feeding

Carnivorous

62

Sea stars feed on : (2)

Bivalves
Other sea stars

63

Sea stars have ____ capabilities as long as ____ is present in fragment

Fragmentation
Central disc

64

Who are considered to be pests by oysters farmers?

Sea stars

65

Oldest class of echinoderms

Sea lilies and feathers stars

66

Sea lilies & feathers stars: feeding: ____ using feathery ____ and ______ to catch floating ______

Filter feeders
Arms
Tube feet
Plankton

67

Sea lilies & feathers stars: have ____ lifestyle;
_______ to ocean floor, coral reef by stem-like _____

Sessile
Attached
Stalk

68

Echinoderms are common in ___ habitats

Marine

69

Who help control distribution of algae and other marine life forms ?

Sea urchins

70

Who controls populations of clams and corals?

Sea stars