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Bio Lab
Platyhelminthes, Nematoda, Annelida
42
Biology
Undergraduate 1
03/21/2013

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Cards

Term
Phylum Platyhelminthes are commonly known as what?
Definition
Flatworms
Term
How many germ layers does Platyhelminthes have?
Definition
Three.
Term
What kind of organ system does Platyhelminthes have?
Definition
"True" organ system
Term
What kind of symmetry does Platyhelminthes have?
Definition
Bilateral
Term
Through what process did Platyhelminthes become bilateral?
Definition
Cephalization
Term
Cephalization
Definition
Nervous tissue builds up in one area over many generations to eventually form a head.
Term
What kind of circulation does Platyhelminthes have?
Definition
Gastrovascular cavity
Term
What are examples of Platyhelminthes?
Definition
Planarians, tapeworms, flukes.
Term
What genus and class does Platyhelminthes include?
Definition
Cestodes and Planarians
Term
What are the characteristics of Cestodes?
Definition
Parasitic, they have proglottids and scolex.
Term
What are the characteristics of Planarians?
Definition
Free living, pharynx leads to gastrovascular cavity.
Term
Pharynx
Definition
throat
Term
Scolex
Definition
Hooklets and suckers
Term
Proglottid
Definition
Segments with both male and female reproductive parts.
Term
Scolex ( upclose picture)
Definition
[image]
Term
Scolex (far away picture)
Definition
[image]
Term
How may Platyhelminthes be characterized by how they reproduce?
Definition
Hermaphrodites
Term
How is Phlylum Nematoda more commonly known?
Definition
Roundworms
Term
How does Nematoda live?
Definition
Free-living or parasitic
Term
How may Nematoda be characterized by their body cavity?
Definition
Pseudoceolomate
Term
How does Nematoda changes its shape and move?
Definition
Hydrostatic skeleton
Term
What kind of digestive tract does Nematoda have?
Definition
Complete digestive tract.
Term
What kind of muscle does Nematoda have?
Definition
Longitudinal
Term
What is the consequence of having longitudinal muscles?
Definition
Movement in a single plane.
Term
What are two examples of Nematoda?
Definition
Difofilaria Immitis and Ascaris
Term
Difofilaria Immitis is more commonly known as
Definition
Dog heartworm
Term
Ascaris is what kind of Nematode?
Definition
parasitic
Term
Difofilaria Immitis (picture)
Definition
[image]
Term

Ascaris (picture)

 

Be able to identify Intestine and Pseudocoelem

Definition
[image]
Term
What kind of muscle does Annelida have?
Definition
Longitudinal and circular segmented muscles.
Term
What does Annelida have in each segment?
Definition
Nephridia
Term
What does Nephridia secrete?
Definition
N waste
Term
What kind of circulatory system does Annelida have?
Definition
Closed circulatory system
Term
What kind of digestive tract does Annelida have?
Definition
Complete digestive tract
Term
What is well-developed in Annelida?
Definition
the nervous system
Term
Describe the body cavity of Annelida
Definition
Coelem; hydrostatic skeleton
Term
Septa
Definition
thin sheets of tissue
Term
What separates each segment of Annelida?
Definition
septa
Term
What connects each segment of Annelida?
Definition
The nervous and circulatory system
Term
What are two examples of Annelida?
Definition
Leech and Polychaeta
Term
Leech (picture)
Definition
[image]
Term
Polychaeta (picture)
Definition
[image]
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