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Brach Zoology Exam 2
Chapters 5-8 Jane Brach Tyler Junior College
42
Other
Undergraduate 1
10/19/2011

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Term
Study of protozoans
Definition
protozoology
Term
Protozoans belong to kingdom ______ and domain _____
Definition
Protista; Eukarya
Term
Protozoa form a resistan, dormant stage called a _____ stage
Definition
Cyst
Term
How do protozoans obtain and get rid of carbon dioxide? How do they carry out the process of excretion?
Definition
Oxygen, Carbon dioxide, and ammonia defuse between the organism and the enviroment
Term
Name the organelle that functions in digestion
Definition
Food Vacuole
Term
Name the organelle that functions in osmoregulation
Definition
contractile vacuole
Term
The most common type of asexual repreoduction is...
Definition
Binary fission
Term
Sponges belong to phylum
Definition
Porifera
Term
Sponges are the simplest ___
Definition
metazoans
Term
Most Porifera species are _____
Definition
Marine
Term
Adult sponges are ___
Definition
Sessile
Term
Best symmetry for sponges
Definition
asymmetry
Term
Cell animals
Definition
Sponges
Term
Reproduce sexually and asexually
Definition
monoecious
Term
Cnidarian symmetry
Definition
Radial
Term
Platyhelminthes commonly called
Definition
Flatworms
Term
Platyhelminthes Symmetry
Definition
bilateral
Term
A location of sensory structures
Definition
cephalization
Term
Flatworms are termed
Definition
triploblastic
Term
Lacking a coelum
Definition
acoelomate
Term
Most flatworms are _____
Definition
Monoecious
Term
Mutualistic
Definition
Both partners benefit
Term
Commensalistic
Definition
One partner benefits without affecting the other
Term
Parasitic
Definition
One partner benefits at the expense of the other
Term
Lives in intestine of termite and digests cellulose
Definition
Trichonympha
Term
A parasite in man that causes African Sleeping Sickness
Definition
Trypanosoma
Term
No definite shape; free-living; uses food vacuoles for digesting food
Definition
Ameba
Term
Accumulation of shells on ocean floors has resulted in present day chalk formations
Definition
Foraminiferans
Term
Causes Malaria in man
Definition
Plasmodium
Term
Central cavity of sponge
Definition
Spongocoel
Term
Large excurrent opening of the spongocoel
Definition
Osculum
Term
Commonly called collar cells, line the spongocoel
Definition
Choanocytes
Term
Gelatinous layer between the pinacocytes and the choanocytes
Definition
Mesohyl
Term
A major category of cnida
Definition
Nematocysts
Term
Central cavity with a single opening in Phylum Cnidaria
Definition
Gastrovascular cavity
Term
A diffuse system called the nerve net
Definition
Nervous system
Term
A cylindrical form attached at one end with a mouth surrounded by tentacles at other end
Definition
Sessile polyp
Term
Always a polyp
Definition
Hydra
Term
Both polyp and medusa forms
Definition
Obelia
Term
Class contains hydra and obelia
Definition
Hydrozoa
Term
Class that contains jellyfish
Definition
Scyphozoa
Term
Class that contains sea anemones and corals
Definition
Anthozoa
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