animal 1

Question 1

phylum: cnidarians

Answer 1

radial symmetry 
two cell layers ecto/endo
tissue level of organization
hermaphrodites 
gvc
polyp/medusa

Question 2

classes of cnidarians

Answer 2

hyrozoa: mostly polyp
Anthozoa: only polyps
Scyphozoa: mainly medusa

Question 3

platy

Answer 3

bilateral symmetry
cephalon action
3 layers of cells

Question 4

mesoderm

Answer 4

excretion and ingestion hard: branched gvc, flat, flame cells

Question 5

Turbellaria

Answer 5

free living worms planarian

cross eyed

Question 6

Trematoda

Answer 6

flukes: blood organs, parasitic

Question 7

Cestoda

Answer 7

tapeworm
parasitic 
head w suckers 
no gvc
multiple hosts

Question 8

life cycle of tapeworm

Answer 8

adult attaches in human 
mature proglottid
fertilization
gracias proglottid
elimination
egg in feed
ingestion by cow
6hooked larva 
encysted by bladder worm
eat raw meat

Question 9

sponge

Answer 9

germ layers: 0
body cavity: central cavity (osculum) 
digestion: archeocyres engulf food particles lysosomes 
circulation: choanocytes: flagella 
reproduction: sexual 
excretion: out of osculum
nervous system: protective skeletons

Question 10

hydra

Answer 10

germ layers: 2
Body cavity; gvc
digestion: extra: gland cells intra: vacuoles and lysosomes
reproduction: polyp- asexual, medusa-sexual
excretion: diffuse, out through mouth
nervous system: sensory cells, nerve net in mesoglea,

Question 11

planaria

Answer 11

germ layers:3
gvc
digestion: extra/intra+pharynx
reproduction: hermaphrodites, internal fertilization 
excretion: flame cells 
nervous system: ganglia, nerve cords

Question 12

fluke lifecycle

Answer 12

egg in feces, miricidum in water, sporocyst in snail, redia in snail, cercaria, cercaria in fish-encysted, eat raw fish in humans

Question 13

osculum
pore
spicule
archeocyte 
choanocyte

Answer 13

water and food leaves
water and food enters
part of skeleton and is used in classification
make spicules and engulf food particles and circulate their nutrients
use flagella

Question 14

animals

Answer 14

heterotrophs
eukaryotic
multicellular
reproduce sexually 
respond to stimuli
mobile
vertebrates or invertebrates

Question 15

trends in animal evolution

Answer 15

levels of organization: tissues, organs, systems
radial to bilateral symmetry
cephalization
body plan: sac plan to a tube

Question 16

cnarians

7

Answer 16

radial symmetry
tentacles w nematocysts
tissues
two cell layers- ecto/endoderm
hermaphrodite
gastrovascular cavity 
polyp, medusa

Question 17

hydra things

8

Answer 17

germ layers 2
body cavity: gvc
respiration:diffusion
circulations: h20-flagellated cells 
reproduction: asexual: budding sexual

excretion: diffusion
nervous: cnidocyte, sensory cells

Question 18

phyla

Answer 18

porefeira 
cnidarians 
platy
athurapods 
cordata

Question 19

advantages of each body plan

Answer 19

2 opening digestive system
-parts of the tube can specialize, extra cellular is now more important
-more powerful
body cavity
-cushions internal organs from shock
-provides a space for internal organs to develop
-more primitive

Question 20

arthropod characteristics

Answer 20

jointed legs
segmented bodies 
exoskeleton
separate sexes
open circulatory system
excrete by green glands is malpighian tubes 
cephalization 
bilateral symmetry

Question 21

Chordata

Answer 21

dorsal hollow nerve cord 
vertebrate 
post anal tail
central heart
endo skeleton

Question 22

agnatha

Answer 22

jawless fishes

extotherms

Question 23

osteichthyes

Answer 23

fish

two chambered heart

Question 24

chondrichthyes

Answer 24

sharks

cartilage

Question 25

amphibia

Answer 25

toads no scales

3 chambered heart

Question 26

reptilian

Answer 26

snakes
scales
eggs with shells
3-4 heart chambers

Question 27

aves

Answer 27

birds
flying feathers
4 chambered heart

Question 28

mammals

Answer 28

hair
breath feed
4 chambered heart