Lophophorates Flashcards Preview

Minor Phyla > Lophophorates > Flashcards

Flashcards in Lophophorates Deck (14)
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1
Q

Give the 3 key subgroups of this phyla.

A

Phronidia (Horse shoe worms)
Ectoprocta (Bryozoans)
Brachiopoda (Lamp shells)

2
Q

Give the habitat of Phronidia.

A

Marine, Benthic (bottom of water column)

3
Q

Give the habitat of Ectoprocta

A

Aquatic
Sessile
Colonial (join with other organisms)

4
Q

Give the key features of Phronida

A

Fine tentacles, make up Lophophore.
On apical surface
Cilia drive nutrients to the mouth (centre of L)
Vision enables retraction of L

5
Q

What are the key features of the Lophophorates ?

A

All have a Lophophore,

A feeding organ, a ring of ciliated tentacles around the mouth.

6
Q

What are Ectoprocta ?

A

A collection of animals which join to produce a moss like structure

7
Q

Where are ectoprocta commonly found ?

A

On the hull of ships, can lead to the destruction of the hull over time.

8
Q

What do Ectoprocta feed on ?

A

Filter feed nutrients in the water

Parasitize other organisms.

9
Q

What is a zooecium ?

A

A calcareous ‘box’ which ectoprocta can retract into. closing the Operculum for protection.

10
Q

What is the benefit to a Ectoprocta of joining with other Ectoproctas ?

A

Create Excurrent chimneys by all co-ordinating cilla

Enables more water to be filtered, increasing food supply.

11
Q

Where is the Lophophore found within the Brachiopoda ?

A

Within the shells, which open to enable water flow for feeding

12
Q

How many shells do the brachiopoda have ?

A

2 Shells

Dorsal and Ventral

13
Q

What is the function of the pedicle in a brachiopoda ?

A

Enables attachment of the brachiopoda to the substrate.

14
Q

What clade where the lophotrocozoans originally thought to belong to ?

A

The Deuterostomes, now classed as Lophophorates.