animal 1 Flashcards

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1
Q

phylum: cnidarians

A
radial symmetry 
two cell layers ecto/endo
tissue level of organization
hermaphrodites 
gvc
polyp/medusa
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2
Q

classes of cnidarians

A

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

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3
Q

platy

A

bilateral symmetry
cephalon action
3 layers of cells

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4
Q

mesoderm

A

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

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5
Q

Turbellaria

A

free living worms planarian

cross eyed

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6
Q

Trematoda

A

flukes: blood organs, parasitic

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7
Q

Cestoda

A
tapeworm
parasitic 
head w suckers 
no gvc
multiple hosts
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8
Q

life cycle of tapeworm

A
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
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9
Q

sponge

A
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
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10
Q

hydra

A

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,

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11
Q

planaria

A
germ layers:3
gvc
digestion: extra/intra+pharynx
reproduction: hermaphrodites, internal fertilization 
excretion: flame cells 
nervous system: ganglia, nerve cords
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12
Q

fluke lifecycle

A

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

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13
Q
osculum
pore
spicule
archeocyte 
choanocyte
A

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

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14
Q

animals

A
heterotrophs
eukaryotic
multicellular
reproduce sexually 
respond to stimuli
mobile
vertebrates or invertebrates
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15
Q

trends in animal evolution

A

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

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16
Q

cnarians

7

A
radial symmetry
tentacles w nematocysts
tissues
two cell layers- ecto/endoderm
hermaphrodite
gastrovascular cavity 
polyp, medusa
17
Q

hydra things

8

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

excretion: diffusion
nervous: cnidocyte, sensory cells

18
Q

phyla

A
porefeira 
cnidarians 
platy
athurapods 
cordata
19
Q

advantages of each body plan

A

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

20
Q

arthropod characteristics

A
jointed legs
segmented bodies 
exoskeleton
separate sexes
open circulatory system
excrete by green glands is malpighian tubes 
cephalization 
bilateral symmetry
21
Q

Chordata

A
dorsal hollow nerve cord 
vertebrate 
post anal tail
central heart
endo skeleton
22
Q

agnatha

A

jawless fishes

extotherms

23
Q

osteichthyes

A

fish

two chambered heart

24
Q

chondrichthyes

A

sharks

cartilage

25
Q

amphibia

A

toads no scales

3 chambered heart

26
Q

reptilian

A

snakes
scales
eggs with shells
3-4 heart chambers

27
Q

aves

A

birds
flying feathers
4 chambered heart

28
Q

mammals

A

hair
breath feed
4 chambered heart