QUICK ASSESSMENT 1

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QUICKASSESSMENT 1
A is to the right as you look at this screen, Z
to the left Mark is given out of 15 and as
Class mean was 10.7 (72)
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QUICKASSESSMENT 1
Mean 72 (27-100 n 47)
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IDEAL TEST
Correct
Too easy
Guessing
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THIS TEST
Correct
Too easy
Guessing
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QUICKASSESSMENT 1
Recycled questions this year 73 Questions
new for this year 71
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QUICKASSESSMENT 1
Recycled questions this year 73 Mean for
same questions in past 67
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ANNELID DIVERSITY
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ANNELIDBAUPLAN

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PHYLUM TRADITIONALLY SPLIT INTO3 CLASSES
Polychaetes Oligochaetes Leeches
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PROBABLY BETTER AS 2
Polychaetes Clitellates
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CLITELLUM
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CLITELLUM
DOH!
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ANNELIDCLASS 1
POLYCHAETES
Marine Diverse ecology
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POLYCHAETEPARAPODIUM MANY CHAETAE
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BURROWINGPOLYCHAETES
Ragworm Carnivore Lugworm Deposit feeder
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LUGWORM CAST
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LUGWORM CASTS
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LUGWORM
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LUGWORM
OXYGEN-RICH SEAWATER
AEROBIC BACTERIA
ANAEROBIC BACTERIA
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SESSILE POLYCHAETE
Peacock Worm
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SESSILE POLYCHAETE
Spirorbis Tube Worm
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PELAGIC POLYCHAETE
Alciopid Worm
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ANNELIDCLASS 2
OLICOCHAETES
Mainly freshwater terrestrial Detritivores
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OLIGOCHAETEFEW CHAETAE
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NIGHT CRAWLER Lumbricus terrestris
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COMPOST WORM Lumbricus rubellus
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FRESHWATER WORM Lumbriculus sp.
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SLUDGE WORMS Tubifex sp.
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BRANCHIOBDELLID
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BRANCHIOBDELLIDS
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ANNELIDCLASS 3
LEECHES
Mainly aquatic Predators Blood grazers
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SOME TERRESTRIAL
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MEDICINAL LEECH
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ANNELIDTHEME

• What features make Annelids such important
  ecosystem engineers?

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ECOSYSTEM ENGINEERS
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ECOSYSTEM ENGINEERS
AUTOGENIC Body (dead or alive) creates habitat
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ECOSYSTEM ENGINEERS
ALLOGENIC Alter their environment