Worm Review

Earthworms breathe with Earthworms belong to the KINGDOM _______________ PHYLUM ________________ CLASS ___________________ Animalia Annelida Oligochaeta Earthworms breathe with lungs gills nephridia skin They breathe through their skin

Earthworms and leeches are __________ 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 Setae __________________________ Aortic arches ____________________ Cerebral ganglia _________________ Seminal vesicles _________________ Seminal receptacles________________ Provide traction in crawling Act as heart to pump blood Act as brain Store sperm made by this worm to give away Store sperm received from other worms

Earthworms have a(n) __________ circulatory system. open closed Which type of protective covering is made of thickened fused CELLS? Tegument cuticle tegument Earthworms have a(n) __________ circulatory system. open closed closed

An earthworm stores the sperm it makes in seminal _________ An earthworm stores the sperm it makes in seminal _________. receptacles vesicles 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

eucoelomates Earthworms are ________________ acoelomates pseudocoelomates eucoelomates The thin membranes that separate the earthworm’s coelom into compartments are called ________________ Septa (sing. Septum)

The PRIMARY host for the beef tapeworm is ______________ The PRIMARY host for the beef tapeworm is ______________. cows pigs humans snails humans 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 Crop __________________________ Typhlosole _______________________ Gizzard ___________________ Nephridia _________________ Clitellum ____________________ Stores food waiting to be digested Increases surface area to absorb more nutrients Grinds and mashes up food Excretes nitrogen waste Makes mucous for reproduction

Name 4 characteristics of ALL worms Invertebrates protostomes Elongated bodies Bilateral symmetry Cephalization Cerebal ganglia "brain" No respiratory organs (breathe through skin)

The structure on an earthworm that Round worms are all ______________ acoelomates pseudocoelomates eucoelomates pseudocoelomates The structure on an earthworm that secretes mucous for reproduction is the _____________ clitellum

Tube that connects the pharynx and the crop in an earthworm. 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

Blood fluke Schistosoma _____________________ MATCH THE WORM WITH THE WAY IT IS TRANSMITTED TO HUMANS Blood fluke Schistosoma _____________________ Intestinal round worm Ascaris _________________________ Beef Tapeworm ___________________ Pork roundworm Trichinella ___________________ Burrow through skin contaminated food or water Eating undercooked meat containing cysts Eating undercooked meat containing cysts

An earthworm stores sperm it receives from other worms in its seminal _________________. receptacles 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

Respiratory organ found in earthworms 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 ________________. slender body few bristles crawling tube little rings “little rings”

Flame cells and nephridia are ____________ organs. The male genital pores connect to which sperm storage structure inside? __________________ seminal vesicles Flame cells and nephridia are ____________ organs. Reproductive nervous digestive excretory circulatory skeletal excretory

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 round segmented flat Image from: http://sps.k12.ar.us/massengale/unsegmented_worm_notes_b1.htm These organisms are ____________ worms. Flat round segmented flat

Planaria have just one opening for their digestive system. TRUE True or False Planaria have just one opening for their digestive system. TRUE Fertilization in an earthworm happens ___________ of their bodies. Inside outside 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

PHYLUM that includes the flatworms Earthworms have a non-cellular ________________ to help them hold in moisture. tegument cuticle cuticle PHYLUM that includes the flatworms Platyhelminthes

Match the type of worm with the kind of coelom it has acoelom pseudocoelom eucoelom FLATWORMS ___________________ ROUND WORMS ____________________ SEGMENTED WORMS _______________ acoelom pseudocoelom eucoelom

The animal in which an adult parasite lives and reproduces is the _____________ host. primary secondary intermediate primary 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. Flat round segmented round

The anterior end of a tapeworm containing hooks and suckers to help it hold on inside the host is the _____________________ scolex A one opening shared digestive/circulatory space seen in Planaria Gastrovascular cavity

Name a worm you learned about without a digestive system? Tapeworm Organisms without a backbone INVERTEBRATES

* proglottids Humans are infected with beef tapeworms when they 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 containing cysts walk with bare feet and larvae burrow into their skin *

MATCH THE WORM WITH THE WAY IT IS TRANSMITTED TO HUMANS Filarial worms ____________________ Hookworms_____________________ Round worm Trichinella ___________________ Bitten by insect carrying larvae Burrow through skin in feet Eating undercooked meat containing cysts

The primary host for beef tapeworm is a ______________ human An organism that has both male and female reproductive organs is called a _________________ hermaphrodite

* Round worms belong to the PHYLUM ______________ Ascaris eggs enter the body of a human when ________________ The person ingests contaminated water or food The person is bitten by a mosquito carrying the larvae larvae burrow through the skin The person eats undercooked meat containing cysts * Round worms belong to the PHYLUM ______________ Nematoda

TELL WHICH BODY SYSTEM EACH PART BELONGS TO Crop __________________________ Cerebral ganglia _________________ Aortic arches___________________ Nephridia _________________ Clitellum ____________________ Intestine ____________________ digestive nervous circulatory excretory reproductive digestive

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 FLATWORMS _______________ ROUNDWORMS _____________ SEGMENTED WORMS ______________ Platyhelminthes Nematoda Annelida

Type of circulatory system seen in earthworms Type of fertilization seen in earthworms CLOSED external fertilization

MATCH THE COELOM with the WORM FLAT ROUND SEGMENTED __________ __________ ____________ Segmented (eucoelom) Flat (acoelom) Round (pseudocoelom) Images from: http://www.lander.edu/RSFOX/310images/310bilatImage.html

Type of reproduction seen in earthworms Type of development seen in earthworms Type of development seen in blood flukes sexual direct Indirect; there is a larva that lives in snails

Type of symmetry seen in worms bilateral In earthworms seminal _____________ store sperm received from other worms during sexual reproduction. receptacles

How do tapeworms obtain nutrients without a mouth or digestive system? Absorb through their tegument (Covering on skin) Worms are _______________ invertebrates vertebrates Invertebrates (no backbone)

MATCH THE DIGESTIVE SYSTEM WITH THE WORM Planaria __________________________ Tapeworms _______________________ Earthworms _______________________ Gastrovascular cavity/1 opening No digestive system 2 openings

Planaria, flukes, and tapeworms are ____________ worms. protostomes Worms are _____________ protostomes deuterostomes Planaria, flukes, and tapeworms are ____________ worms. flat round segmented flat

MATCH THE WAY HUMANS ARE INFECTED WITH THE WORM Eating contaminated food or water __________ Eating undercooked meat with cysts ______________ _________________ Burrow through skin ______________ __________________ Insect bites ___________________ Ascaris Beef tapeworm or Pork Round worm (Trichinella) Blood Fluke (Schistosoma) Hookworms Filarial worms (Elephantiasis, dog heartworm)

Type of digestive system seen in Flukes and Planaria Gastrovascular cavity with 1 opening Flatworms have ____________ to excrete nitrogen waste and remove excess water flame cells

NAME THE TYPE OF SYMMETRY Radial Bilateral Asymmetry Images from: http://www.uic.edu/classes/bios/bios100/labs/radial.jpg http://www.uic.edu/classes/bios/bios100/labs/bilateral.jpg http://vilenski.org/science/safari/animals/other/classify_animals.html

Earthworms and leeches are_______________ worms. flat round segmented Type of worm you would expect to have a scolex Tapeworm

Where would you find a typhlosole in an earthworm? The hermaphroditic reproductive structures seen in tapeworms are called _______________ proglottids Where would you find a typhlosole in an earthworm? Inside intestine

Name a kind of worm with a one opening gastrovascular cavity Which kind of worm lives inside your intestine and crawls out the anus at night to glue eggs to your skin? pinworms Name a kind of worm with a one opening gastrovascular cavity Planaria OR flukes

Name a worm you learned about that can use either SEXUAL or ASEXUAL reproduction The concentration of a “brain” and sensory organs at the head end of an animal is called ___________________ Planaria cephalization

Gastro = digestive vascular = circulatory 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? Comes from? Removed by what body system? Leaves body as? In digestive tract By body cells Left over from breakdown of proteins undigested food during metabolism Digestive Excretory Feces ammonia, urea, OR uric acid

Earthworms and leeches are_______________ worms. flat round segmented Tell what an earthworm uses its Setae for Traction when it crawls

MATCH THE DISEASE with the worm that causes it Schistosomiasis ____________________ Trichinosis _______________________ Elephantiasis ___________________ Ascaris _________________ Pinworms ____________________ Blood fluke: Schistosoma Round worm: Trichinella Filarial round worm Round worm Round worm

MATCH THE FUNCTION with the BODY PART Helps tapeworms attach to host _________ Increases surface area in intestine to absorb more nutrients _____________ Makes mucous for earthworm sex ___________ Excretes nitrogen waste in earthworms _________________ scolex Typhlosole clitellum nephridia

MATCH THE FUNCTION with the BODY PART Covers and protects earthworm’s mouth and senses light and vibration/touch ____________ Excrete nitrogen waste in flatworms_____________ Excretes nitrogen waste in earthworms _________________ prostomium Flame cells nephridia

Label the directions DORSAL ANTERIOR POSTERIOR VENTRAL Animation from: http://bestanimations.com

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