AD 1

?
name the main features of sponges (9)
Multicellular, heterotrophic, no cell wall, strongly dimorphic gametes, cell specialisation- no organs, pores for drawing in supplies, skeleton of spicules and colllagen, motile and can alter C/P cycling in ocean
1 of 12
What do some people think is the most ancient lineage?
Ctenophores
2 of 12
Name the 3 types of non symmetrical, non evolutionary seperate sponges
Asconoid, Syconoid and Leuconoid
3 of 12
What are flagella in sponges used for?
To waft particles in for phagocytosis. Found on choanocytes with amoebocytes on the end
4 of 12
Name the 4 different sponge classifications
Desmospongiae, Homoscleromorpha, Calcarea and Hexactinellida
5 of 12
What are the 5 sponge synapomorphies
Choanocytes, aquiferous system with external pores, mineral spicules and high cellular mobility and totipotency
6 of 12
How do sponges reorganise themselves?
Via self recognition of cells. Cell adhesion and histoincompatibility allow for this
7 of 12
How do sponges sexually repoduce?
They are monoecious. Gemmules have totipotential archaeocytes. Larva is released from choanocytes after fertilisation or oocytes and sperm will fuse in water
8 of 12
How do cladorhizidae feed?
Use spicules to spike small crustaceans and their cells curl around the prey and phagocytosis occours
9 of 12
How do sponges asexually repoduce?
via budding in a harsh climate
10 of 12
Do sponges show symbiosis? if yes with what?
Yes can coexist with either photosynthetic or methanotrophic bacteria in mesophyll
11 of 12
What is A. an autograft and B. an allograft?
A. fusion of the same cells B. fusion of different cells that is rejected
12 of 12

Other cards in this set

Card 2

Front

What do some people think is the most ancient lineage?

Back

Ctenophores

Card 3

Front

Name the 3 types of non symmetrical, non evolutionary seperate sponges

Back

Preview of the front of card 3

Card 4

Front

What are flagella in sponges used for?

Back

Preview of the front of card 4

Card 5

Front

Name the 4 different sponge classifications

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Porifera resources »