Transcript Unit 4 : Simple Animals

Simple Animals
Unit 4
Semester 2
The most complex animals are
the :
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A)
B)
C)
D)
Porifera
worms
Arthropoda
chordates
Which one is an example of
symbiosis?
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A) A lion eating a gazelle.
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B) the Nile crocodile opening its mouth to permit the Egyptian plover to feed on
any leeches attached to its gums
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C) the remora and the shark. The dorsal fin of the remora (a bony fish) is
modified into a sucker with which it forms a temporary attachment to the shark.
When the shark feeds, the remora picks up scraps. The shark makes no attempt
to prey on the remora.
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D) Paramecium bursaria is a ciliate that engulfs unicellular green algae into
vacuoles within its cell
Which is not a feature of
animals?
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A)
B)
C)
D)
show some kind of symmetry
make their own food
move about
multicellular
Which list most accurately details
structures found in sponges?
• A) flagella, clitellum, collar cells, epidermis, and amebocytes
• B) flagella, clitellum, collar cells, nephridia, epidermis, and amebocytes
• C) flagella, collar cells, epidermis, and amebocytes
• D) flagella, collar cells, nephridia, epidermis, and amebocytes
The scientific name for the
phylum of flatworms is ____.
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Platyhelminthes
Annelida
Nematoda
Echinodermata
Hollow saclike bodies, tentacles,
and radial symmetry are all
characteristics of
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A)
B)
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Annelida
Flatworms
Nematoda
Stinging cell animals
Which of the following are all
stinging-cell (coelenterata)
animals?
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A)
B)
C)
D)
coral, hydra, sponge, jellyfish
coral, jellyfish, sponge
sponge, hydra
coral, hydra, jellyfish
The digestive system of the
roundworm can be described as a
• A) tube within a tube with a mouth and anus
• B) system consisting of several parts , each
with a specific function.
• C) hollow sac with one opening
• D) system with one opening called a mouth
Mollusk may be harmful
Slugs and snails eat vegetation.
Shipworms ( “termites of the sea”) drill holes
in the hulls of wooden boats and docks
Shellfish that eat the wrong stuff may be
harmful to humans
All of the following are phyla of
worms except :
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A)
B)
C)
D)
Nematoda
Platyhelminthes
Annelida
Clitellum
Means head
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A)
B)
C)
D)
anterior
cephalo
caudal
platy
A flatworm with a flattened
ribbonlike body divided into sections
and a head with hooks and suckers is
a ______.
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B)
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D)
tapeworm
sponge
hookworm
planarian
The scientific name for the
phylum of segmented worms is
____.
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A)
B)
C)
D)
Platyhelminthes
Annelida
Nematoda
Echinodermata
Jet propelled!!
Squids have a way of rapidly escaping predators.
They take water into their body and force it out
to move backward.
Have you let go of an untied balloon filled with air?
The scientific name for the
phylum of Roundworms is ____.
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A)
B)
C)
D)
Platyhelminthes
Annelida
Nematoda
Echinodermata
Groups of animals that have hollow
sac-like bodies, 2 cell layers, radial
symmetry, tentacles, and
nematocysts
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B)
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coelenterata ( cnidaria) – stinging-cell animals
mollusk- soft bodied animals
porifera - sponges
Platyhelminthes- Flatworms
A slug is a _____.
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A) roundworm ( nematoda)
B) flatworm ( platyhelminthes)
C) mollusk ( Mollusca)
D) cnidarian ( coelenterata)
A stinging-cell organism is most
likely to live in ______.
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A) the body of a host
B) soil
C) salt water
D) fresh water
Animals without backbones
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B)
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invertebrates
vertebrates
chordates
hermaphrodite
Organ that grinds food
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B)
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psuedopod
flagellum
gizzard
nematocyst
Osmosis is the movement of ___
into and out of cells.
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B)
C)
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cytoplasm
water
chemicals
oxygen
Front end of animals
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B)
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cephalo
posterior
ventral
anterior
Sponges are ____.
• A) mollusk
• B) stinging-cell animals
• C) a phylum of animals that has no tissues
or organs
• D) a phylum of animals with layers of
muscles and setae to help it grip the soil
Medical uses of the Leech
During plastic surgery, leeches are used to drain off
excess blood allowing reattached
blood vessels to heal.
The giant Amazon leech produces a chemical called
hemetin. This chemical dissolves
blood clots. Researchers believe that it might be useful
for dissolving blood clots to
prevent heart attacks and strokes in humans
Ability to regrow lost or damaged
parts
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division of labor
regeneration
cephalization
symbiosis
A mollusk with no shell
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snail
clam
planaria
slug
Means flat
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B)
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anterior
cephalo
caudal
platy
How mollusks move
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legs
foot
wing
fins