Download Annelid Test Zoology B

Name
Annelid Test
Worm Practical
Answer the question at the lab station.
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True/False
Write true/false in the blank provided.
16.
Segmented worms are in the phylum Polychaeta.
17.
Examples of segmented worms include leech, earthworms and tubifex worms.
18.
There are 9000 species which live in EVERY part of the world.
19.
The body system of an annelid is a pseudocoelom.
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Segmented worms have only circular muscles which help them to move.
21.
Setae are used for respiration and reproduction.
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Segmented worms have a closed circulatory system.
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Hermaphrodites are organisms with both sexes.
Classification
Write O for Oligochaeta, P for Polychaeta, H for Hirudinea and A for All
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Parapodia are used for locomotion.
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Soil is the natural habitat
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Kingdom Animalia
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Phylum Annelida
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Ex: earthworms
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Ex: leeches
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Ex: lugworms, clamworms
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About 8000 species
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Live in freshwater or tropical areas
Short Answer
Please answer the following questions in complete sentences.
33. What main function AND what body system does the clitellum serve?
The function of the clitellum is mucous secretion during copulation and cocoon formation after
copulation.
34. How/Where does respiration occur in earthworms?
Earthworms do not have lungs. They breathe through their skin. Oxygen and carbon dioxide
pass through the earthworm's skin by diffusion. For diffusion to occur, the earthworm's skin must
be kept moist
35-37. What are three practical uses of annelids/earthworms? Or, list three ways in which
humans can use earthworms.
Diagrams
Label each picture with the appropriate words/phrases.
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Matching: Match the function with the correct organ of the earthworm.
____41. pharynx
____42. crop
____43. gizzard
____44. intestine
____45. aortic arches
____46. ganglia
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Temporary storage place for food
Concentration of nervous tissue, “brain”
Sucks in food
Used for movement and reproductive purposes
Excretory organ, excretes ammonia
Runs from the ganglia to each segment, transmits messages
Grinds food into small pieces
Digestion and absorption occur here
Maintains a steady pressure of blood to vessels
Excretes large pieces of waste
____47. nerve cord
____48. setae
____49. nephridia
____50. Anus