Animalia - Invertebrates Flashcards
0
Q
Cnideria
A
Jellyfish, Anemones, Corals, Hydras
- 2 forms: polyp, medusa
- one mouth/anus opening
1
Q
Porifera
A
Sponges
- suspension feeders
- reproduce by fragmentation
2
Q
Turbellaria
A
Flatworms
- no respiratory or circulatory system
- nitrogenous waste through skin
- move on cilia and glide on mucous
3
Q
Trematoda
A
Flukes
- most are intestinal parasites
- use intermediate host for life cycle
4
Q
Cestoidea
A
Tapeworms
- parasitic organisms (pigs, sheep, humans, etc)
- each mature proglottid can reproduce
5
Q
Rotifera
A
Protist sized organisms
- aquatic organisms
- a complete digestive system
- fluid filled pseudocoelom
6
Q
Gastropoda
A
coiled shells and mollusks
- asymmetrical body shape
- coiled shells
- have a “foot” used for locomotion
6
Q
Polyplecaphora
A
8 plated mollucks
- foot for slow locomotion
7
Q
Bivalvia
A
2 half shelled clams
- suspension feeders: use two siphons for “water filtering”
- can be attached to rocks or dug in dirt
8
Q
Cephalopoda
A
Octopuses and the shelled Nautilus
- no shell except nautilus
- beak/mouth in the center of body between the arms and tentacles
- well developed brain (sensory organs, closed circulatory system, and nervous system)
10
Q
Nematoda
A
Round Worms
- parasites to animals like dogs, but most are free-living
- fluid filled pseudocoelom
11
Q
Nemertea
A
Ribbon Worms
- complete digestive tract
- closed circulatory system with moving blood
12
Q
Annelida
A
Segmented Worms
- Polychaetes: marine species with more parapodia on the segments
- Oligochaetes: earth worms with very few parapodia on segments
13
Q
Cheliceroformes
A
Ticks, Scorpions, Spiders, Mites
- one set of feeding and sensory appendages: pedipalp
- one set of fangs or pinchers
14
Q
Myriopoda
A
Millipedes and Centipedes
- segmented worm like creatures
- hard exoskeleton
- open circulatory system
15
Q
Hexapoda
A
Insects
- terrestrial
- 1 or 2 pairs of wings
- open circulatory system
- complete or incomplete metamorphosis
16
Q
Crustea
A
Crabs, Shrimp, Barnacles, Lobsters, Crayfish
- water living creatures
- multiple appendages and appendages
- open circulatory system
17
Q
Asteroidea
A
Sea Stars
- all marine species
- specially designed tube feet and vascular system for feeding, locomotion, and gas exchange
18
Q
Ophiuroidea
A
Brittle Star
- central disc with thin legs
- lack the tube feet
19
Q
Echinoidea
A
Sea Urchins
- five rows of tube feet
- spines with sharp needles for protection
20
Q
Crinoidea
A
Sea Lilies and Feather Stars
- have feather appendages
- upward facing mouth
21
Q
Holothuroidea
A
Sea Cucumbers
- cucumber shape
- tube feet
- with extra for feeding
