Protective outer layer MADE
OF CELLS on flukes & tapeworms
that protects against the host’s
digestive enzymes & immune system
TEGUMENT
Earthworms belong to this phylum.
Annelida
This organ in the earthworm’s
digestive system stores food
before it is digested.
CROP
In an earthworm this digestive organ
grinds the food.
GIZZARD
Hooks and suckers at the
anterior end of a tapeworm
which help it hold onto its host
are called the ____________
SCOLEX
The nervous system in an earthworm
consists of a ventral nerve cord and
two cerebral __________________
GANGLIA
Protective NON-CELLULAR
outer covering on earthworms &
roundworms
CUTICLE
Earthworms belong to this CLASS
Oligochaeta
This ridge inside an earthworm’s
intestine increases surface area so more
nutrients can be absorbed
TYPHLOSOLE
In an earthworm this tube connects the
pharynx to the crop
ESOPHAGUS
The intermediate host is the animal in
which the ____________ form of a
parasitic worm lives.
LARVA
ADULT
The primary host is the animal in
which the __________ form of a
parasitic worm lives and reproduces.
LARVA
ADULT
The excretory organs in an earthworm
are called ____________________
Excretory organs in FLAT &
ROUNDWORMS are called _________
NEPHRIDIA
FLAME CELLS
In the life cycle of the beef tapeworm,
the worm larvae form ___________
in the muscles of the cows they infect.
CYSTS
Planaria, flukes, and tapeworms are
examples of this group of worms.
Flat
A hermaphroditic reproductive
section from a tapeworm which is
released in the feces is called a
________________
Round
Segmented
Type of coelom found in FLATWORMS
acoelom
pseudocoelom
eucoelom
PROGLOTTID
A true body cavity lined with
mesoderm on both sides is called a
_______________.
EUCOELOM
Type of coelom found in ROUND
WORMS
acoelom
Type of coelom found in Segmented
worms
pseudocoelom
eucoelom
Hookworms, pinworms, and filarial
worms are examples of _________
worms
Acoelom Pseudocoelom Eucoelom
FLAT
Name the flatworm with no mouth,
no anus, and no digestive organs.
Planaria
Tapeworm
Fluke
ROUND SEGMENTED
All worms are ___________________
VERTEBRATES INVERTEBRATES
Type of worm which has a scolex
Planaria
Tapeworm
Fluke
Organisms with a pseudocoelom are
missing which germ layer around their
internal organs?
MESODERM
All worms are ____________________
DEUTEROSTOMES PROTOSTOMES
Type of symmetry seen in worms
asymmetry
These bristle-like structures on the
ventral side of an earthworm give
it traction.
SETAE
Radial
Bilateral
To which PHYLUM do FLATWORMS
belong?____________
Annelida Platyhelminthes Nematoda
The pharynx, crop, and gizzard are all
parts of the _____________ system in an
earthworm.
Digestive
To which PHYLUM do round worms
belong?
To which PHYLUM do SEGMENTED
WORMS belong?
Name 4 characteristics shared by ALL
WORMS
Annelida
Platyhelminthes
Nematoda
A one opening digestive cavity seen in
Planaria and flukes is called a
____________________________.
GASTROVASCULAR CAVITY
Annelida Platyhelminthes Nematoda
Invertebrate protostomes, bilateral symmetry,
elongated bodies, cephalization, cerebral
ganglia, breathe through skin
In the lifecycle of the beef tapeworm,
the intermediate host is a ___________
Human
snail
cow
Tapeworms live in which body organ?
Type of worm that is spread to humans
through insect bites.
INTESTINES
FILARIAL
The _______ is the intermediate
host for the larval form of the
Schistosomiasis blood fluke.
Human
snail
cow
Type of reproduction seen in
earthworms
Sexual
Asexual
An organism that has BOTH male
and female sex organs is called
Humans are the __________ host in the
life cycle of Schistosomiasis blood fluke.
Primary
Type of circulatory system seen in
earthworms
OPEN
Direct
Indirect
The outer covering on an earthworm
that protects it from losing moisture
is called __________________
CUTICLE
CLOSED
The ability to regrow lost body
parts is called __________________
HERMAPHRODITE
Type of development seen in
earthworms
intermediate
REGENERATION
Most invertebrates are _____________
except echinoderms.
protostomes
deuterostomes
An earthworm has ________ openings
to its digestive system.
1
2
none
A Planaria has ____ opening(s)
to its digestive system.
1
2
Name a kind of worm that infects
humans by burrowing through the
skin
none
Blood fluke OR hookworms
Nephridia and flame cells belong
to which body system?
Name a kind of worm that infects
humans by eating undercooked meat
containing cysts
Excretory
Beef or pork tapeworm OR
Trichina pork roundworm
Seminal vesicles are part of the
_________________ system.
Reproductive
The aortic arches in an earthworm
are part of the ____________system.
Circulatory
The ringed swelling on the body of an
earthworm that produces mucous
during reproduction =?
CLITELLUM
In an earthworm the _____________
store sperm made by the worm itself.
Seminal vesicles
Humans are infected by Ascaris
intestinal round worms by __________
Ingesting contaminated food or water
Flap of tissue that overhangs an
earthworm’s mouth and senses food,
light, & vibration = ?
PROSTOMIUM
Which worm that you learned about
can reproduce asexually?
PLANARIA
How are a tegument and cuticle
different?
Tegument = made of cells
Cuticle = noncellular
In an earthworm this body part stores
sperm received from other worms
during sex
SEMINAL RECEPTACLES
Type of worm you would expect to
have proglottids
TAPEWORM
ROUND
CLITELLUM
Type of worm you would expect to have
a gastrovascular cavity
Planaria OR Fluke
Leeches and earthworms are examples
of ____________ worms.
FLAT
In an earthworm this body part makes
mucous to help exchange sperm
SEGMENTED
The part of an earthworm that acts
as its heart to pump blood =?
AORTIC ARCHES
Tell one adaptation earthworms have
to help it absorb nutrients from soil.
really long intestine OR typhlosole
Type of skeleton seen in earthworms
fluid in coelom (hydrostatic skeleton)
________________ is the most common
parasitic worm infection worldwide.
Ascaris
The part in a earthworm that acts as
its brain = ?
CEREBRAL GANGLIA
Type of fertilization seen in
earthworms.
INTERNAL
EXTERNAL
In Latin the name Annelida means
“little rings”
Muscular part that pulls food into
an earthworm’s digestive system =?
PHARYNX
The concentration of nervous and
sensory organs in the head end of
an animal is called ______________
Thin membranes that divide the
coelom of an earthworm into
compartments = ?
SEPTA
Tell how Elephantiasis is transmitted
to humans
Mosquito bites
CEPHALIZATION
Tell how beef tapeworm is
transmitted to humans
Eating undercooked meat
containing cysts
Tell how blood flukes are transmitted
to humans
Larvae burrow through skin
Most common parasitic worm
in the United States
Pinworms
In Latin the name Oligochaeta means
“few bristles”
Tell how hookworms are transmitted
to humans
larvae burrow through skin
Tell how pinworms are transmitted
to humans
ingesting eggs from hands
Name a worm with INDIRECT
development.
blood fluke (Schistosoma); Trichinella;
Beef/pork tapeworm; dog heart worm
Earthworms belong in this Kingdom
ANIMALIA
Give an example of a round worm:
Pinworm, Ascaris, Trichinella
Hookworms, filarial worms
Earthworm part that stores sperm
made to give away
Seminal vesicles
What disease is caused by blood
flukes in which irritation, bleeding,
and tissue decay result from blocked
blood vessels?
SCHISTOSOMIASIS
Filarial worms that cause
Elephantiasis live in the human
_____________ system.
Give the Kingdom, Phylum, and class
for earthworms
K: Animalia P: Annelida
C: Oligochaeta
What is the advantage of having a
2 opening digestive system?
Can start to specialize organs
“Different parts do different jobs”
What roundworm disease caused by a
Trichinella worm results in muscle
pain, and stiffness when larvae make
cysts in your muscle?
TRICHINOSIS
Earthworm part that makes sperm
TESTES
LYMPHATIC
Earthworm part that makes eggs.
OVARY
The anus is the exit opening for
the _____________ system.
DIGESTIVE
Earthworm part where digestion
is completed and nutrients are
absorbed
INTESTINE
Which body system collects and
removes nitrogen waste & carries out
osmoregulation?
EXCRETORY
Which body system deals with
exchange of gases with the
atmosphere?
How do earthworms breathe?
Gas exchange through their skin
RESPIRATORY
Give a function for Nephridia
Collect/remove nitrogen waste;
osmoregulation
Earthworm part that stores sperm
received from other worms
Seminal receptacles
Maintaining the balance of water and
ions in the body is called ?
OSMOREGULATION
What form of nitrogen waste is
excreted by earthworms?
UREA
All invertebrates have a
_____________ heart & a
_____________ nerve cord.
(Use dorsal & ventral)
All vertebrates have a
_______________ heart and a
_______________ nerve cord.
(Use dorsal & ventral)
Dorsal Heart/ventral nerve cord
Ventral Heart/dorsal nerve cord
Tell how the digestive system in a
tapeworm is different from other
kinds of flatworms.
In an earthworm, the exit openings for
sperm leaving the seminal vesicles is
called the _____________________
Tapeworms have no anus, mouth,
or digestive organs; other flatworms
have a gastro-vascular cavity
In an earthworm nitrogen waste is
collected by _____________ & exits
through pores in the _____________
nephridia ; skin
Male genital pores
The exit opening for digestive waste in
earthworms is called the ____________
anus
Tell one way digestive waste and
Nitrogen waste are different.
Digestive: comes from undigested food,
Removed as feces by digestive system
Excretory: made by body cells during metabolism:
removed as urea, uric acid, or ammonia by
Excretory system
Body system to which cerebral
ganglia and ventral nerve cord
belong.
NERVOUS
Body system to which pharynx,
crop, and gizzard belong.
DIGESTIVE
Give the function for the GIZZARD
GRIND FOOD
Give the function for the CLITELLUM
Make mucous for reproduction
Give the function for the INTESTINE
Absorb nutrients
Give the function for SETAE
TRACTION
Body system to which nephridia and
flame cells belong.
EXCRETORY
Body system to which aortic arches
belong
CIRCULATORY
Give the function for the CROP
STORE FOOD
Give the function for the PHARYNX
Pull food iuto the digestive system
Give the function for the CUTICLE
protection; prevent water loss
Give the function for the
TYPHLOSOLE
Give the function for the
PROSTOMIUM
Increase surface area to absorb nutrients
cover/protect mouth;
sense light/dark, food, & vibrations