Quiz 18-19 Flashcards Preview

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Flashcards in Quiz 18-19 Deck (36):
1

Parazoa=

sponges

2

Eumetazoa

all animals except sponges

3

animals unicellular or multicellular?

multicellular

4

Animals are heterotrophic or autotrophic

heterotrophic

5

Animals have an ___ in which they ingest food

opening

6

Symettry in the following animals:

Sponge

Humans

Asymettry-no apparent

Bilateral

7

Distinctive tissue layers in Hydra

2, everything else 3

8

Endoderm

innermost tissue layer, around digestive tract

9

mesoderm

middle, most numerous, muscle tissues

10

ectoderm

outermost, body covering, skin

11

body cavity present?

3 tissue layers=body cavity, <3 = no cavity

12

acoelomate

flatworm, no true cavity, mesoderm fills where cavity would be

13

pseudocoelomate

nematode, cavity between mesoderm and endoderm, length of animal

14

degrees of segmentation

linear repitition, ribs, vertebrae

15

cephalization

sensory equip concentrated toward front or head as in humans

16

Phylum Porifera

sponges, cessile as adult, move as larvae

17

Sponge/Spicule

support structures, prevent entry of animals

18

sponge/osculum

large opening

19

Sponge/collar cells

capture nutrients

20

Phylum Cnidaria

Corals, Jellyfish, Hydra. Tissue Grade, no specialized organs. Radial Symmetry.

21

cnidocyte

stinging tentacle

22

hydras/gastrovascular cavity

begins digestion

23

Only free living , non parasitic organisms

planarians

24

Phylum Platyhelminthes

Planarians, flukes, tapeworms

25

planarian/auricle

projects from each side of head

26

Dorsal is the ____ side and Ventral is the ____ side

back, belly

27

What organs are present for excretion of nitrogenous waste in a nematode (roundworm)?

lateral excretory canals

28

What organs are present for excretion of nitrogenous waste in a earthworm?

nephridia

29

What organs are present for excretion of nitrogenous waste in a cordate?

kidneys

30

Phylum Nematoda

Roundworms, males have a hook

31

Phylum Annelida

Earthworms, tubeworms, leeches

32

Phylum Mollusca

clams, oysters, snails, squid, octipi, slugs, chitons

33

What type of body cavity does a planaria (flatworm have)?

no true cavity (acoelomate)

34

What type of body cavity does a Ascaris (roundworm) have?

pseudocoelomate

35

What type of body cavity does a lumbricus (earthworm) have?

encoelomate

36

True or False. Clams have an open circulatory system

True