Transcript asdfs - local.brookings.k12.sd.us

Worm Review
Earthworms belong to the
KINGDOM _______________
Animalia
Annelida
PHYLUM ________________
Oligochaeta
CLASS ___________________
Earthworms breathe with
lungs
gills
nephridia skin
They breathe through their skin
Earthworms and leeches are
__________
segmented worms.
Flat
Round
Segmented
Tell the two adaptations earthworms
have to help them absorb nutrients
from the soil they eat.
Really LONG intestine AND Typhlosole
MATCH THE EARTHWORM BODY
PART WITH ITS FUNCTION
Provide traction in crawling
Setae __________________________
Act as heart to pump blood
Aortic arches ____________________
Cerebral ganglia _________________
Act as brain
Store sperm made
Seminal vesicles _________________
by this worm
Store sperm received
Seminal receptacles________________
from other worms
Which type of protective covering is
made of thickened fused CELLS?
Tegument
cuticle
tegument
closed
Earthworms have a(n) __________
circulatory system.
open
closed
An earthworm stores the sperm it
makes in seminal _________.
vesicles
receptacles
vesicles
Digestive organ in an earthworm
that stores food waiting to be digested.
crop
Type of coelom seen in ALL
flatworms
they are acoelomates
What part of an earthworm
helps with traction as it crawls?
Setae – bristles on ventral
surface
Earthworms are ________________
eucoelomates
acoelomates
pseudocoelomates
eucoelomates
The thin membranes that separate
the earthworm’s coelom into
compartments are called
________________
Septa (sing. Septum)
The PRIMARY host for the
humans
beef tapeworm is ______________.
cows
pigs
humans
snails
The digestive part that sucks in the
food and moves it down into the
digestive system is the
________________.
pharynx
MATCH THE EARTHWORM BODY
PART WITH ITS FUNCTION
Stores food waiting to be digested
Crop __________________________
Increases surface area to absorb
Typhlosole _______________________
more nutrients
Grinds and mashes up food
Gizzard ___________________
Nephridia _________________
Excretes nitrogen waste
mucous for reproduction
Clitellum Makes
____________________
Name 4 characteristics of ALL worms
Invertebrates
Protostomes
Elongated bodies
Bilateral symmetry
Cephalization
Cerebal ganglia "brain"
No respiratory organs
(breathe through skin)
pseudocoelomates
Round worms are all ______________
acoelomates
pseudocoelomates
eucoelomates
The structure on an earthworm that
secretes mucous for reproduction is
clitellum
the _____________
The concentration of nervous and
sensory organs in the anterior end
of an animal is called
_______________
cephalization
Tube that connects the pharynx and
the crop in an earthworm.
esophagus
MATCH THE WORM WITH THE WAY IT
IS TRANSMITTED TO HUMANS
Blood fluke
Burrow through skin
Schistosoma _____________________
Intestinal round worm
contaminated food or water
Ascaris _________________________
Beef Tapeworm ___________________
Eating undercooked meat
containing cysts
Pork roundworm
Trichinella ___________________
Eating undercooked meat
containing cysts
An earthworm stores sperm it
receives from other worms in its
receptacles
seminal _________________.
The excretory organ in an earthworm is
its ___________________
nephridia
Where would you find setae in an
earthworm?
Ventral surface
What structures act as a heart in
an earthworm to pump blood?
Aortic arches
anterior
The ____________end
of the earthworm
is closest to the clitellum.
anterior
posterior
Respiratory organ found in
earthworms.
Trick question… they don’t have any
respiratory organs; they absorb oxygen
through their skin.
An organism that has both male
and female reproductive
structures is called a
hermaphrodite
_______________
Protective layer that covers the
body of an earthworm and tapeworm
which is NOT made of cells
tegument
cuticle
cuticle
The excretory organs in
flatworms
are the __________________
Flame cells
In Latin the name Annelida means
“little rings”
________________.
slender body
few bristles
crawling tube
little rings
The male genital pores are openings to
the __________________
seminal vesicles
Flame cells and nephridia are
____________
organs.
excretory
Reproductive nervous digestive
excretory circulatory skeletal
Name parts of the digestive system
of an earthworm starting at the
anterior end and moving through
the digestive system.
Mouth, pharynx, esophagus, crop, gizzard,
intestine, anus
The flap of tissue that hangs over
an earthworm’s mouth and senses
light/touch is the
prostomium
__________________
These organisms
are ____________
worms.
flat
Flat
round
segmented
True or False TRUE
Planaria have just one opening
for their digestive system.
Fertilization in an earthworm
happens ___________
of their bodies.
outside
Inside
outside
The ability of an animal to regrow
lost body parts is called
regeneration
____________________
Muscular digestive organ where
food is ground up in an earthworm.
gizzard
Earthworms have a________________
cuticle
to help them hold in moisture.
tegument
cuticle
PHYLUM that includes the flatworms
Platyhelminthes
Match the type of worm with the
kind of coelom it has
acoelomates
pseudocoelomates eucoelomates
acoelomates
FLATWORMS ___________________
pseudocoelomates
ROUND WORMS ____________________
eucoelomates
SEGMENTED WORMS _______________
The animal in which an adult
parasite lives and reproduces is the
primary host.
_____________
primary
secondary
intermediate
Filarial worms like the ones that
cause elephantiasis and dog heartworm
are carried by ______________.
insects
The intermediate host that carries
beef tapeworm is a
cow
_______________
Hookworms, round worms, pinworms,
and filarial worms are all
__________
worms.
round
Flat
round
segmented
The anterior end of a tapeworm
containing hooks and suckers to
help it hold on inside the host is the
_____________________
scolex
Give an example of a worm
with a cuticle
Earthworms OR Round worms
How is the digestive system of round
worms different from that of flatworms?
Roundworms have a complete digestive system with 2
openings (mouth & anus)
Flatworms
Planaria & Flukes:
have a gastrovascular cavity with only 1 opening
(only mouth/NO ANUS)
Tapeworms:
have NO digestive system
The hermaphroditic reproductive
segments released by tapeworms
are called ______________
proglottids
Humans are infected with beef
tapeworms when they
*
drink contaminated water
get bitten by a mosquito carrying the larvae
eat under cooked meat
walk with bare feet and larvae burrow into
their skin
MATCH THE WORM WITH THE
WAY IT IS TRANSMITTED TO
HUMANS
Bitten by insect
Filarial worms ____________________
carrying larvae
Burrow through skin in feet
Hookworms_____________________
Round worm
Eating undercooked meat
Trichinella ___________________
containing cysts
The primary host for beef
tapeworm is a ______________
human
An organism that has both male
and female reproductive organs is
hermaphrodite
called a _________________
Ascaris eggs enter the body of a human
when the
*
host ingests contaminated water or food
host is bitten by a mosquito carrying the larvae
larvae burrow through the skin
eating undercooked meat containing cysts
Round worms belong to the
Nematoda
PHYLUM ______________
TELL WHICH BODY SYSTEM
EACH PART BELONGS TO
digestive
Crop __________________________
nervous
Cerebral ganglia _________________
circulatory
Aortic arches___________________
excretory
Nephridia _________________
Clitellum ____________________
reproductive
digestive
Intestine ____________________
How is a TEGUMENT different
from a CUTICLE?
Both are protective layers on outsides
of worms but …
A tegument is made of fused CELLS.
A cuticle is a NON-CELLULAR coating
GIVE THE PHYLUM FOR
EACH TYPE OF WORM
Platyhelminthes
FLATWORMS _______________
Nematoda
ROUNDWORMS _____________
SEGMENTED WORMS
Annelida
______________
Name 3 characteristics of
ALL FLATWORMS
In addition to worm characteristics
Flatworms:
Are Platyhelminthes
Are ACOELOMATES
Have FLAME CELLS
to remove nitrogen waste/water
Have OPEN circulation
Most are HERMAPHRODITES
Name 3 characteristics of
ALL ROUND WORMS
In addition to worm characteristics
Round worms:
Nematoda
PSEUDOCOELOMATES
Have a 2 opening digestive system
Have SEPARATE SEXES (male & female worms)
Name 3 characteristics of
ALL SEGMENTED WORMS
In addition to worm characteristics
Segmented worms:
Annelida
Are EUCOELOMATES
Have a 2 opening digestive system
Have NEPHRIDIA
to remove nitrogen waste/water
Have CLOSED circulation
Are HERMAPHRODITES
Type of symmetry seen in worms
bilateral
receptacles
In earthworms seminal _____________
store sperm received from other worms
during sexual reproduction.
How do tapeworms obtain
nutrients without a mouth or
digestive system?
Absorb through their tegument
(Covering on skin)
Invertebrates
Worms are _______________
(no backbone)
invertebrates
vertebrates
MATCH THE DIGESTIVE SYSTEM
WITH THE WORM
Gastrovascular cavity/1 opening
Planaria __________________________
No digestive system
Tapeworms _______________________
Complex/2 openings
Earthworms _______________________
Complex/2 openings
Round worms _____________________
Flukes ____________________________
Gastrovascular cavity/1 opening
protostomes
Worms are _____________
protostomes
deuterostomes
Planaria, flukes, and tapeworms are
____________
worms.
flat
flat
round
segmented
MATCH THE WAY HUMANS ARE
INFECTED WITH THE WORM
Eating contaminated food or water
__________
Ascaris
Eating undercooked meat with cysts
Beef tapeworm or_________________
Pork Round worm
______________
(Trichinella)
Burrow through skin
______________
__________________
Blood
Fluke (Schistosoma)
Hookworms
Insect bites
Filarial worms (Elephantiasis, dog heartworm)
___________________
Type of digestive system seen in
Flukes and Planaria
Gastrovascular cavity with 1 opening
flame cells
Flatworms have ____________
to
excrete nitrogen waste and
remove excess water
Give an example of a worm with
a tegument
Tapeworms or Flukes
The function of the tegument is to
___________________________
Protect worm from host’s digestive
enzymes and immune system
Earthworms and leeches
are_______________
worms.
segmented
flat
round
segmented
Type of worm you would
expect to have a scolex
Tapeworm
The hermaphroditic reproductive
structures seen in tapeworms are
proglottids
called _______________
Where would you find a typhlosole
in an earthworm?
Inside intestine
Which kind of worm lives inside
your intestine and crawls out at
night to glue eggs to your skin?
pinworms
Name a kind of worm with a
one opening gastrovascular cavity
Planaria OR flukes
TELL WHAT KIND OF REPRODUCTIVE
SYSTEM EACH WORM HAS
hermaphrodite
2 sexes
Hermaphrodites
FlatwormsMost
_______________________
(exception: few flukes like blood fluke)
Round worms _____________________
2 sexes
Segmented worms ___________________
hermaphrodites
The gastrovascular cavity in
Planaria and Flukes shares the
functions of which 2 different
body systems?
Gastro = digestive
vascular = circulatory
Where would you find a ADULT
beef tapeworm living?
Inside human intestine
KEEP IT STRAIGHT:
Compare Digestive and Nitrogen waste
DIGESTIVE
WASTE
NITROGEN
WASTE
Made where?
In digestive tract
By body cells
Comes from?
Left over from
undigested food
Removed by
what body system?
Leaves body as?
Digestive
Feces
breakdown of proteins
during metabolism
Excretory
ammonia, urea,
OR uric acid
Earthworms and leeches
are_______________
worms.
segmented
flat
round
segmented
Type of worm you would
expect to have a scolex
Tapeworm
MATCH THE DISEASE with the
worm that causes it
Blood fluke: Schistosoma
Schistosomiasis ____________________
Round worm: Trichinella
Trichinosis _______________________
Elephantiasis ___________________
Filarial round worm
Round worm
Ascaris _________________
Round worm
Pinworms ____________________
MATCH THE FUNCTION with the BODY
PART
Helps tapeworms attach to host _________
scolex
Increases surface area in intestine to
Typhlosole
absorb more nutrients _____________
Makes mucous for earthworm sex
___________
clitellum
Excretes nitrogen waste in earthworms
nephridia
_________________
MATCH THE FUNCTION with the BODY
PART
Covers and protects earthworm’s mouth
and senses light and vibration/touch
____________
prostomium
Excrete nitrogen waste in
flatworms_____________
Flame cells
Excretes nitrogen waste in earthworms
_________________
nephridia
THE END