Phylum Echinodermata Flashcards Preview

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Flashcards in Phylum Echinodermata Deck (19)
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1
Q

Phylum Echinodermata are found in which environment

A

Marine environments

2
Q

How does the Phylum Echinodermata have a unique circulatory system?

A
  • Lack a true heart

- Blood and fluid is pumped by water vascular system

3
Q

Describe the overall structure of Echinodermata?

A

Ring canal with extending radial canals

4
Q

Echinodermata have madreporite, which are found

A

On top of the body for water regulation within the vascular system

5
Q

What do the madreporite allow for?

A

Water to be filtered into the system

6
Q

How is the symmetry displayed by Echinodermata?

A

Bilateral during the larval stage but radial during the adult stage

7
Q

How many tissues to Echinodermata have?

A

Three, making them triploblasts

8
Q

What is the level of organization displayed by Echinodermata?

A

Organ-level

9
Q

Do Echinodermata have a coelom?

A

Yes

10
Q

What is the function of tube feet?

A
  • Locomotion
  • Gather food
  • Respiration
11
Q

What are the Sense organs?

A

Poorly developed:

Tactile organs, chemoreceptors, terminal tentacles

12
Q

Reproduction can be asexual or sexual but fertilization occurs

A

Externally

13
Q

What is the Water vascular system?

A

Network of canals that circulates seawater and body fluids

14
Q

What operates the Tube Feet?

A

Water vascular system

15
Q

Echinodermata have a nervous system but

A

Lack brain + other sensory organs

16
Q

How is the digestive system?

A

Complete, with butt on top and mouth on the bottom

17
Q

The mouth contains a

A

Radula

18
Q

How is the excretory system?

A

Simple, with no kidneys

19
Q

How do echinodermata get rid of wastes?

A

Via diffusion