Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

animal kingdom > Porifera, ctenophora, cnidaria > Flashcards

Porifera, ctenophora, cnidaria Flashcards

1
Q

What phylum do sponges belong too?

A

Porifera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What original cells do sponges contain?

A

Choanocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where do water currents enter and leave a sponge?

A

Enter the ostia and leave via the osculum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does the extracellular matrix of sponges contain?

A

Collagen

Often stiffened with spicules (of silica or calcium carbonate)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Sponges are loosely organised, no symmetry, muscles or nervous system

A

TRUE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How do sponges reproduce?

A

They are hermaphrodites
Sperm sent out via the osculum
Some asexually by budding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How do sponges feed?

A

Beating flagella draw water through sponge and choanocytes capture food particles.
Some are carnivorous- capture prey with spcules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why are sponges important in medicine?

A

Cell recognition and rejection.
(Pass through a sieve cells dissociate an re-aggregate to form a new sponge)
Drugs
(Oxylipins , possible antibiotics and cancer drugs)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why are they classed as ultimate recyclers?

A

Vital for coral reef health, soak up nutrients n sea water and turn into food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the three extant classes of sponges?

A

Desmospongia
Hexactinella
Calcarea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are three examples of the phylum cnidaria?

A

Actinia, Aurelia, Hydra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the phylum ctenophora?

A

Comb jellies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the four extant classes of cnidaria

A

Hydrozoa
Anthozoa
Scyphozoa
Cubozoa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Two examples of hydrozoa

A

Hydra, Physalia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What features do ctenophora have? (3)
COMB JELLIES
150 spp

A

complete through gut
ctenes, cell with plates of cilia move animal
2 cell layers seperated by gelatinous mesogloea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What features do cndaria have? (3)

A 
Cnidocytes - stinging cells
Mouth connected to blind gastrovascular cavity
Life cycle with two stage-
Polyp: asexual may bud to form colonies
Medusa: shed eggs and sperm into water
17
Q

What features do Anthozoa have?

SEA ANEMONES, HARD CORALS, SOFT ROCKS

A

Lack medusa stage
Flower animals
Old polyps leave their calcareous skeletons behind

18
Q

What features do hydrozoa have?

Hydra, Physalia

A

Polyp dominates life cycle
Most colonial
polyps specialised differently for different tasks

19
Q

What are scyphozoa?

JELLYFISH

A

Cup shaped
Marine
Medusa large polyps little

20
Q

What are cubozoa?

BOX JELLLYFISH

A

Square bell
Have eyes with retina, lens and iris
Some venomous

animal kingdom (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions