Lab 4 Platyhelminthes - EVERYTHING
1. CLASSIFICATION: Only answer the phylum, class or order that you are responsible for knowing this
week.
A) Phylum Cnidaria
B) Class Cestoda
C) Phylum Platyhelminthes
D) Class Scyphozoa: B) Class Cestoda
C) Phylum Platyhelminthes
2. ORGANIZATION:At what level is the basic body plan organized? (e.g. cell, tissue, organ, etc.)
A) Tissue level only
B) Cellular level only
C) none of the above
D) Both tissue and organ level: D) Both tissue and organ level
3. EMBRYONIC DEVELOPMENT:List the characteristics found during the for- mation of the blastula (e.g.
triploblastic, deuterostome, etc.).
A) Diploblast B)Triploblast
C)Protostome
D)Deuterostome
E)Acoelomate
F)Pseudocoelomate
G) Eucoelomate (o coelomate)
H) No embryonic development: B) Triploblast
C) Protostome
E) Acoelomate
4. SYMMETRY:What type of symmetry is found in the basic body plan? (e.g. asymmetrical, radial. etc.)
A) Asymmetry
B) Radial symmetry C)Pentaradial
symmetry
D) Bilateral symmetry: D) Bilateral symmetry
, Lab 4 Platyhelminthes - EVERYTHING
5. SKELETON/SUPPORT:List the structures or ways this group of animals support themselves (e.g.
hydrostatic skeleton, exoskeleton, etc.).
A) Hydrostatic skeleton
, Lab 4 Platyhelminthes - EVERYTHING
B) Endoskeleton
C) Exoskeleton: A) Hydrostatic skeleton
6. MOVEMENT/LOCOMOTION:What structures are used to help them move around their environment?
(e.g. types of muscles, jointed legs, cilia, etc.).
A) Cilia
B) Glides using muscles C)Longitudinal
muscles only
D) Circular muscles only
E) Both longitudinal and circular muscles originated from a mesoderm
F) No locomotion, they're sessile G)Hydrostatic
skeleton: A) Cilia
B) Glides using muscles
E) Both longitudinal and circular muscles originated from a mesoderm
G) Hydrostatic skeleton
7. SENSORY/NERVOUS:Describe the nervous system (i.e. ganglia, CNS, ven- tral nerve cord, etc.) and any
sensory specializations found in the group (e.g. auricles, eyes, antennae, etc.).
A) Ocelli
B) Cerebral ganglia
C) Ventral nerve cord
D) Dorsal nerve cord
E)Cephalization F)Auricles
G) All except D
H) A, B and F: A)Ocelli
B) Cerebral ganglia
C) Ventral nerve cord
E)Cephalization F)Auricles
8. CIRCULATION:Describe the circulatory system (e.g. diffusion, open system, etc.).
1. CLASSIFICATION: Only answer the phylum, class or order that you are responsible for knowing this
week.
A) Phylum Cnidaria
B) Class Cestoda
C) Phylum Platyhelminthes
D) Class Scyphozoa: B) Class Cestoda
C) Phylum Platyhelminthes
2. ORGANIZATION:At what level is the basic body plan organized? (e.g. cell, tissue, organ, etc.)
A) Tissue level only
B) Cellular level only
C) none of the above
D) Both tissue and organ level: D) Both tissue and organ level
3. EMBRYONIC DEVELOPMENT:List the characteristics found during the for- mation of the blastula (e.g.
triploblastic, deuterostome, etc.).
A) Diploblast B)Triploblast
C)Protostome
D)Deuterostome
E)Acoelomate
F)Pseudocoelomate
G) Eucoelomate (o coelomate)
H) No embryonic development: B) Triploblast
C) Protostome
E) Acoelomate
4. SYMMETRY:What type of symmetry is found in the basic body plan? (e.g. asymmetrical, radial. etc.)
A) Asymmetry
B) Radial symmetry C)Pentaradial
symmetry
D) Bilateral symmetry: D) Bilateral symmetry
, Lab 4 Platyhelminthes - EVERYTHING
5. SKELETON/SUPPORT:List the structures or ways this group of animals support themselves (e.g.
hydrostatic skeleton, exoskeleton, etc.).
A) Hydrostatic skeleton
, Lab 4 Platyhelminthes - EVERYTHING
B) Endoskeleton
C) Exoskeleton: A) Hydrostatic skeleton
6. MOVEMENT/LOCOMOTION:What structures are used to help them move around their environment?
(e.g. types of muscles, jointed legs, cilia, etc.).
A) Cilia
B) Glides using muscles C)Longitudinal
muscles only
D) Circular muscles only
E) Both longitudinal and circular muscles originated from a mesoderm
F) No locomotion, they're sessile G)Hydrostatic
skeleton: A) Cilia
B) Glides using muscles
E) Both longitudinal and circular muscles originated from a mesoderm
G) Hydrostatic skeleton
7. SENSORY/NERVOUS:Describe the nervous system (i.e. ganglia, CNS, ven- tral nerve cord, etc.) and any
sensory specializations found in the group (e.g. auricles, eyes, antennae, etc.).
A) Ocelli
B) Cerebral ganglia
C) Ventral nerve cord
D) Dorsal nerve cord
E)Cephalization F)Auricles
G) All except D
H) A, B and F: A)Ocelli
B) Cerebral ganglia
C) Ventral nerve cord
E)Cephalization F)Auricles
8. CIRCULATION:Describe the circulatory system (e.g. diffusion, open system, etc.).
