10th Biology chpt. 22-23
Terms
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- multicellular organisms
- metazoans
- adaptation of a cell for a particular funcion
- specialization
- fertilized egg
- zygote
- hollow sphere of 1 layer of cells formed by mitosis
- blastula
- when 1 layer of cells folds inwards; forms 2 layers
- gastrula
- outer layer that later forms covering of animal
- ectoderm
- inner layer that forms lining of the gut
- endoderm
- middle germ layer that has all the systems and stuff
- mesoderm
- 2 equal halves are the same
- symmetry
- no definite form
- asymmetrical
- 2 different ends to the organism
- polarity
- perminently attached to solid objects
- sessile
- silicon and calcium substance that gives sponge its shape (skeleton)
- spicules
- able to regrow missing or damaged parts
- regeneration
- stinging cells in tentacles(used for protection and food getting)
- nematocysts
- live in a host and are protected by a tough covering
- parasitic
- head of a tapeworm
- scolex
- sections behind scolex mature ones at end
- proglottid
- disease caused by Trichina Worm
- Trichinosis
- secrets shell
- mantle
- tongue-like structure
- radula
- wide band on anterier end; aide in reproduction
- clitellum
- grinds food w/ aid of sand grain
- gizzard
- organ of nitrogen excretion in simple animals
- nephridia
- primitive hearts
- aoritic arches
- gets in mucsle by tricinia worm
- cysts
- both male and female parts
- hermaphroditic
- List three types of reefs formed from coral.
-
1)marginal
2)atoll
3)barrier - List the three germ layers.
-
1)endoderm
2)ectoderm
3)mesoderm - List the life cycle of a fluke.
-
1)produce egg in host
2)break op and release blood and eggs into intestinges; then passed out by feces
3)larae hatch and find snails
4)new worms break out of snail, wim in water
5)find new human-bore through skin and cycle starts over - List 5 specialized functions of cells.
-
1)support and movement
2)food gathering
3)digestion
4)nutrient transportation
5)nutrient storage
6)waste excretion
7)synthesis of chemicals - List the life cycle of a hookworm
-
1)soil as larvae
2)bore through skin in feet
3)enter blood vessels
4)enter heart then lungs
5)trachea-throat-swalled
6)intestings-attach to intestinal wall causing ripping, tearing and bleeding (adult stage)
7)lay eggs out through animal feces; cycle starts over - List the life cycle of a trichina worm:
-
1)cyst in muscles of animals
2)pig eats infected meat in wastes
3)cyst breaks open, larvae escape and burrow into small intesting
4)grow to adults, produce larvae that burrow into muscle and form cyst
5)human eats under-cooked prk meet and cycle starts over - sponge...phylum
- porifera
- hydra, jelly fish, coral, sea anemone
- Coelenterata (Cnidarian)
- phylum planaria, flukes, tapeworms
- platyhelminthes
- class planaria
- turbellaria
- class flukes
- trematoda
- class tapeworms
- cestoda
- phylum ascaris, hookworms, trichina
- nematoda
- phylum bivalves, gastropods, cephalopod
- mollusca
- phylum/class:featherduster, bristle worm
- annelida/oplychaeta
- phylum/class:earthworms
- annelida/oligochaeta
- phylum/class:leeches
- annelida/hirudinea