Invertebrates Flashcards
What is the sponges cell level?
Multicellular
What is the sponge environment?
Aquatic, mostly marine
How does the sponge feed?
Depends on water currents for food/oxygen
Do sponges have a nervous system?
No
What are sponges like as adults?
Sessile (can’t move)
What is the cnidarian symmetry?
Radial
What is the cnidarian environment?
Aquatic, mostly marine
What are phylum Cnidaria body forms?
Polyp= sessile medusa= free swimming
Does phylum Cnidaria have an excretory or respiratory system?
No
How does phylum Cnidaria reproduce?
Asexual and monoecious
How does phylum porifera reproduce?
Asexually and monoecious
What is the symmetry of phylum Porifera?
Asymmetrical and in some cases radial
What are nematocysts?
Stinging cells
What are the four classes of phylum Platyhelminthes?
Turbelarria
Tremeatoda
Cestoda
Monogenea
What is turbelarria?
Planarians- free living
What is trematoda?
Flukes- all parasitic
What is cestoda?
Tapeworms- intestine parasites
What is monogenea?
Parasitic to fish
What are examples of phylum nematoda?
Hook worms Trichinosis Ascaris Heartworms Caenorhabditis elegans
What are examples of annelids?
Earthworms
Leeches
Polychaetes marines
What type of symmetry does phylum echinodermata have?
Radial symmetry
Does phylum echinodermata have a brain?
No
What are the basic characteristics of phylum echinodermata?
Carnivores and scavengers
Marine
Motile
Water vascular system
How does phylum echinodermata reproduce?
Sexual (external fertilization)
What is phylum echinodermata?
Starfish
What are examples of phylum Mollusca?
Clams Oysters Snails/slugs Octopus Squid Nautilus
What are examples of phylum arthropoda?
Horseshoe crabs Sea spiders Spiders Scorpions Ticks Mites Centipedes Millipedes Butterflies Bees Beatles Flies Crayfish Lobsters
What are the phases in incomplete metamorphosis?
Eggs, nymph, adult
What are the phases in complete metamorphosis?
Eggs, larva, pupa, adult
