Ch_33_Invertebrates_Part_1 Flashcards Preview

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Flashcards in Ch_33_Invertebrates_Part_1 Deck (158)
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1

Phylum Porifera common term

The Sponges

2

number of marine species in Porifera

7000

3

Porifera have _ adults and _ larvae

Sessile and Swimming

4

Sponge 3 layers

Outer Epidermis, Mesohyl, Spongocoel

5

How does water enter and exit Sponge Outer Epidermis

enters incurrent Ostia and exits through Osculum

6

what is the Mesohyl

middle layer that consists of gelatinous matrix

7

What does the Mesohyl gelatinous layer have?

spongin, spicules, and amoebocytes

8

Inner layer of Sponge

Spongocoel

9

Spongocoel is lined with _ to _ water

choanocytes, circulate

10

Sponge cell types

collar cells, amoebocytes

11

What are Sponge collar cells and what do they do?

flagellated choanocytes, circulate water

12

What do Sponge Amoebocytes do?

move with pseudopods, clean pores, secrete spongin and spicules

13

Sponge body forms

Asconoid, Syconoid, Leuconoid

14

3 type of sponges

glass, chalk, commercial

15

glass sponge

spicules and spongin made of silica, provide support

16

chalk sponge

spicules and spongin made of calcium carbonate

17

commercial sponges

spongin only, no spicules

18

sponge spicules types

calcareous, Hexactinellida, Domespongiae, spongin

19

3 types of Phylum Cnidaria animals

jellyfish, corals, hydrozoans

20

Cnidaria defining characteristic

nematocytes (cnidocytes), sting prey

21

Cnidaria 2 tissue layers and seperating part

outer epithelium, inner epithelium, mesoglea

22

2 types of Cnidaria bodies

Medusa and Polyp

23

Cnidaria body structure parts

tentacles, nerve net, 2 tissue layers, stinging cells (nematocytes), mesoglea

24

nematocysts definiton

specialized organelles in nematocytes (cnidocytes) to sting prey

25

Classes of Phylum Cnidaria

hydrozoa, schphozoa, cubozoa, anthozoa

26

Class Hydrozoa forms

medusa and Polyp

27

Class Schphozoa forms

Medusa prominent

28

Class Cubuzoa forms

Medusa prominent

29

Class Anthozoa forms

Polyp only

30

Hydra is a _ water animal

fresh