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Flashcards in Sponges Deck (23):
0

What did early biologists think sponges were?

Plants

1

Sponges are in what kingdom and phylum?

Kingdom Animalia Pylum Porifera

2

Sponges are multi or uni cellular

Multicellular

3

Are sponges prokaryotes or eukaryotes?

Eukaryotes

4

What are the two body layers of sponges?

Epidermis(outer layer)
Gastrodermis(inner layer)

5

What type of symmetry do sponges have?

Asymmetrical

6

Why are adult sponges sessile?

The are attached to some surface

7

What do sponges eat?

Small bits of food, bacteria, algae, or protozoans

8

How do sponges get their food?

Filtering

9

How does water enter a sponge?

They rotate the flagella in a circular motion this sucks water into the sponge

10

What is the job of the amebocyte?

Distributes food and oxygen to epidermis cells

11

What gives the sponge support?

Spongin and spicules

12

What are tiny sponges growing from the body of the sponge called?

Buda

13

What is a gemmule?

A group of amebocyte so covered by a hard outer covering

14

What is a hermaphrodite?

They produce eggs and sperm

15

What is the jellylike layer between the two skin layers called?

Mesohyl

16

What cells move in the Mesohyl delivering food and oxygen to other cells?

Amebocytes

17

What part of the collar cell pulls in water?

Flagella

18

What are collar cells called?

Choanocytes

19

What level of organization of sponges is missing?

They don't have tissue or organs

20

How do sponges reproduce?

Sexually and asexually

21

Do sponges federalize their own eggs?

No

22

When do sponges release gemmules?

After an adult sponge dies