Quiz 18-19 Flashcards Preview

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

Parazoa=

A

sponges

2
Q

Eumetazoa

A

all animals except sponges

3
Q

animals unicellular or multicellular?

A

multicellular

4
Q

Animals are heterotrophic or autotrophic

A

heterotrophic

5
Q

Animals have an ___ in which they ingest food

A

opening

6
Q

Symettry in the following animals:

Sponge

Humans

A

Asymettry-no apparent

Bilateral

7
Q

Distinctive tissue layers in Hydra

A

2, everything else 3

8
Q

Endoderm

A

innermost tissue layer, around digestive tract

9
Q

mesoderm

A

middle, most numerous, muscle tissues

10
Q

ectoderm

A

outermost, body covering, skin

11
Q

body cavity present?

A

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

12
Q

acoelomate

A

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

13
Q

pseudocoelomate

A

nematode, cavity between mesoderm and endoderm, length of animal

14
Q

degrees of segmentation

A

linear repitition, ribs, vertebrae

15
Q

cephalization

A

sensory equip concentrated toward front or head as in humans

16
Q

Phylum Porifera

A

sponges, cessile as adult, move as larvae

17
Q

Sponge/Spicule

A

support structures, prevent entry of animals

18
Q

sponge/osculum

A

large opening

19
Q

Sponge/collar cells

A

capture nutrients

20
Q

Phylum Cnidaria

A

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

21
Q

cnidocyte

A

stinging tentacle

22
Q

hydras/gastrovascular cavity

A

begins digestion

23
Q

Only free living , non parasitic organisms

A

planarians

24
Q

Phylum Platyhelminthes

A

Planarians, flukes, tapeworms

25
Q

planarian/auricle

A

projects from each side of head

26
Q

Dorsal is the ____ side and Ventral is the ____ side

A

back, belly

27
Q

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

A

lateral excretory canals

28
Q

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

A

nephridia

29
Q

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

A

kidneys

30
Q

Phylum Nematoda

A

Roundworms, males have a hook

31
Q

Phylum Annelida

A

Earthworms, tubeworms, leeches

32
Q

Phylum Mollusca

A

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

33
Q

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

A

no true cavity (acoelomate)

34
Q

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

A

pseudocoelomate

35
Q

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

A

encoelomate

36
Q

True or False. Clams have an open circulatory system

A

True