chapter 9scampos77.weebly.com/uploads/6/9/3/7/69372235/chapter_9_notes... · cnidarian nervous...

CHAPTER 9

Characteristics of Animals

◻ Multicellular◻ Cellular Organization

⬜ What is this?

◻ Heterotrophic

◻ Adaptations

Cellular Organization 4 Major Functions of Animals◻ Obtain food and water

⬜ Sustain metabolism

◻ Homeostasis

⬜ Regulate internal environment

◻ Reproduction

⬜ Asexual or sexual

⬜ Fertilization

◻ Movement

⬜ Need to travel

⬜ Sessile vs Motile

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=sq0yrdB50zKCSM&tbnid=Exzc1ucFpA6NwM:&ved=0CAUQjRw&url=http://www.fanpop.com/clubs/animals/images/27943051/title/awesomw-animals-wallpaper&ei=-8mKUtmdA-S22AWNnoCoAg&bvm=bv.56643336,d.b2I&psig=AFQjCNHwlLG-yDU-Jhz6mtczQN4f_rRzog&ust=1384913769647084

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=hFLW6UIhYIVxHM&tbnid=Q_ZKn4U87_FipM:&ved=0CAUQjRw&url=http://www.wallsave.com/wallpaper/1920x1200/animal-animals-teddybear-1060844.html&ei=BcqKUo-pMKPW2gWf5YG4Cg&bvm=bv.56643336,d.b2I&psig=AFQjCNHwlLG-yDU-Jhz6mtczQN4f_rRzog&ust=1384913769647084

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=5xa_Q6KqRE6_sM&tbnid=HOhS-PCgFAartM:&ved=0CAUQjRw&url=http://www.biologycorner.com/anatomy/intro/chap1_notes.html&ei=ZMqKUojIHqaw2gXQvoCoAg&bvm=bv.56643336,d.b2I&psig=AFQjCNHH8xrBgktOTj0dYZwhrQGBS_HHkA&ust=1384913860078383



http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=5xa_Q6KqRE6_sM&tbnid=HOhS-PCgFAartM:&ved=0CAUQjRw&url=http://www.biologycorner.com/anatomy/intro/chap1_notes.html&ei=dcqKUoinGaWT2gX0voHoBg&bvm=bv.56643336,d.b2I&psig=AFQjCNHH8xrBgktOTj0dYZwhrQGBS_HHkA&ust=1384913860078383

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=PEdTCIf39IgdMM&tbnid=6_c-6uvYwnr9vM:&ved=0CAUQjRw&url=http://www.wallsave.com/wallpaper/1600x1200/save-water-animals-giraffe-drinking-414564.html&ei=_8qKUu-mMcjR2QXezYCoDQ&bvm=bv.56643336,d.b2I&psig=AFQjCNGDZ3Z8yyEiFvZFtBKPsv_XbZOEDQ&ust=1384914027735696

Symmetry

◻ What is symmetry?

◻ What are the symmetric (capital) letters in the alphabet?

Bilateral Symmetry

◻ One line that divides something in half

◻ The two sides are reflections of one another

◻ Examples?

⬜ Face

Bilateral Animals

◻ Larger and more complex

◻ Front and back ends

◻ Quick and efficient motion

◻ Important organs in the front

Radial Symmetry

◻ More than one line of reflection that goes through a central point

◻ All points are equal from center

◻ Examples

⬜ Bike wheel

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=TOuvq09ia1vGeM&tbnid=MV_xggq6HrLV1M:&ved=0CAUQjRw&url=http://evelyn_saenz.squidoo.com/maple-math&ei=HcuKUv6jGua42wW064GYCg&bvm=bv.56643336,d.b2I&psig=AFQjCNH3MziMBOqVx4jbz9GdPTbn04vGCA&ust=1384914066930143

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=TOuvq09ia1vGeM&tbnid=MV_xggq6HrLV1M:&ved=0CAUQjRw&url=http://evelyn_saenz.squidoo.com/maple-math&ei=HcuKUv6jGua42wW064GYCg&bvm=bv.56643336,d.b2I&psig=AFQjCNH3MziMBOqVx4jbz9GdPTbn04vGCA&ust=1384914066930143

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=TOuvq09ia1vGeM&tbnid=MV_xggq6HrLV1M:&ved=0CAUQjRw&url=http://evelyn_saenz.squidoo.com/maple-math&ei=K8uKUrHYLsiX2QWwjIHgBQ&bvm=bv.56643336,d.b2I&psig=AFQjCNH3MziMBOqVx4jbz9GdPTbn04vGCA&ust=1384914066930143

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=fS0Lrr3H_j00eM&tbnid=Yh1hXK96VA35NM:&ved=0CAUQjRw&url=http://bio1151.nicerweb.com/Locked/media/ch32/bilateral.html&ei=VMuKUoboGoWb2wXo3IC4BQ&bvm=bv.56643336,d.b2I&psig=AFQjCNGTjm1clJy5vdXpfMUqPns_fAyhvg&ust=1384914108101041

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=R5M9Q3NHFHUc4M&tbnid=C_cAEyZc9gDauM:&ved=0CAUQjRw&url=http://www.bio.miami.edu/dana/160/160S13_14.html&ei=c8uKUuXXI8LW2AXxgYHoCg&bvm=bv.56643336,d.b2I&psig=AFQjCNELhGor4TeR1G6r0siR-qSlEH6pUg&ust=1384914151814697

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=R5M9Q3NHFHUc4M&tbnid=C_cAEyZc9gDauM:&ved=0CAUQjRw&url=http://www.bio.miami.edu/dana/160/160S13_14.html&ei=c8uKUuXXI8LW2AXxgYHoCg&bvm=bv.56643336,d.b2I&psig=AFQjCNELhGor4TeR1G6r0siR-qSlEH6pUg&ust=1384914151814697

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=R5M9Q3NHFHUc4M&tbnid=C_cAEyZc9gDauM:&ved=0CAUQjRw&url=http://www.bio.miami.edu/dana/160/160S13_14.html&ei=gcuKUtatH9O02wXg_oCYBA&bvm=bv.56643336,d.b2I&psig=AFQjCNELhGor4TeR1G6r0siR-qSlEH6pUg&ust=1384914151814697

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=3Dfqnxa8XIp9nM&tbnid=XX3AsWSNq-9TrM:&ved=0CAUQjRw&url=http://bio1151.nicerweb.com/Locked/media/ch32/radial.html&ei=tcuKUqveMKOp2QWHiICIDw&bvm=bv.56643336,d.b2I&psig=AFQjCNGF6cY0ut8FSuEqS9cBW5YHMHnw_w&ust=1384914220423059

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=3Dfqnxa8XIp9nM&tbnid=XX3AsWSNq-9TrM:&ved=0CAUQjRw&url=http://bio1151.nicerweb.com/Locked/media/ch32/radial.html&ei=vsuKUqCAH-WV2QXq84HwBA&bvm=bv.56643336,d.b2I&psig=AFQjCNGF6cY0ut8FSuEqS9cBW5YHMHnw_w&ust=1384914220423059

Radial Animals

◻ No front or back end

◻ Less complex

Taxonomy of Animals

What are the main groups of animals?

Kingdom: Animalia

◻ Anywhere from 9 to 12 phyla

◻ Next level of classification below kingdom

What are these?

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=dLyZo5Y_weW7xM&tbnid=UzZqNR2MZW9A4M:&ved=0CAUQjRw&url=http://www.adapaonline.org/bbk/tiki-index.php?page=Leaf:+What+are+animals?&ei=_MuKUuXcDu-H2AXxwoDgDg&bvm=bv.56643336,d.b2I&psig=AFQjCNEfbLWnLEx56JySMddUiuW8c-AC-Q&ust=1384914253517189

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=FQQ86o2EE3O2GM&tbnid=1o_uKE4rXvcpeM:&ved=0CAUQjRw&url=http://background-pictures.feedio.net/charts-chart-of-marathi-alphabets-with-printable-pictures/&ei=lcyKUrD9MurF2wWl2IDQCg&bvm=bv.56643336,d.b2I&psig=AFQjCNGZTZTumpfOj3g6vKlHy1aITmqQdQ&ust=1384914433606478

http://www.sidwell.edu/us/science/vlb5/Labs/Classification_Lab/Eukarya/Animalia/

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=DqoH8BcRt1moEM&tbnid=064J4HqVreUMPM:&ved=0CAUQjRw&url=http://www.poriferanano.com/company/&ei=Ec6KUp3iNqPW2gWf5YG4Cg&bvm=bv.56643336,d.b2I&psig=AFQjCNF5MUCWkx6atMrt-a2hUbZUEnwN_Q&ust=1384914823699513

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=uFKRuixopfmheM&tbnid=wDS8b4yfG2zqqM:&ved=0CAUQjRw&url=http://www.bubblews.com/news/29029-benefits-of-using-loofah-sponge&ei=LM6KUtPVO8Ly2QWf0YHoAg&bvm=bv.56643336,d.b2I&psig=AFQjCNF5P5tEQauzcjbUe1I47PyaIgzlLA&ust=1384914851383419

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=qmwG-5wHA3ky6M&tbnid=nyafA-HrdoCWTM:&ved=0CAUQjRw&url=http://www.discoinc.com/index.php?displaycat=yes&subcat=yes&subcatid=86&ei=ac6KUoanJabR2QXQqoDQBw&bvm=bv.56643336,d.b2I&psig=AFQjCNFrmhb04cOQn-e0PGHpyAFOSALRxw&ust=1384914900854478

Phylum: Porifera (Sponges)

◻ “Having pores”

◻ Invertebrates

◻ No symmetry

◻ No tissue or organs

⬜ No mouth, stomach, nerves, etc

◻ Sessile

Body Structures

pore

Pores

◻ Holes all over surface to allow water flow

◻ Can filter 1000’s of liters of water a day

◻ Water flows in through pores

◻ Water flows out through osculum

Choanocytes (Collar Cells)

◻ Flagellated cells that move to pump water into and out of the sponge.

◻ Traps unicellular organisms

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=9GRmJnERyDwqbM&tbnid=LZ2CYXqIG1HPJM:&ved=0CAUQjRw&url=https://yhsbiology.wikispaces.com/Porifera&ei=m86KUtLCB4aj2QXR0YDYBg&bvm=bv.56643336,d.b2I&psig=AFQjCNGB8BGOv28RNc8GcYy2vNDcwOuiEw&ust=1384914938995526

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=Xu7o-UV6mUhrJM&tbnid=OCA79NFF_5gsCM:&ved=0CAUQjRw&url=http://www.esu.edu/~milewski/intro_biol_two/lab_9_porifera_cnidaria/asconoid_sponge.html&ei=Ts-KUrm-H4TR2QWMqoGgBQ&bvm=bv.56643336,d.b2I&psig=AFQjCNEC2d42CM7CJtpmzb9Ni67xKnTfhw&ust=1384914998077803

Spicule (Spikes)

◻ Support and protect the sponge

◻ Made of Calcium carbonate or silica

⬜ Much like glass

Mesohyl (Jelly-Like Cells)◻ Made of protein called collagen

◻ Digests and distributes food

◻ Removes waste

◻ Forms sperm and egg cells

Food & Respiration

◻ Filter feeder - Filters thousands of liters of water each day.■ Choanocytes trap unicellular organisms ■ The mesohyl cells break down and digest the

organisms◻ Respiration (O

2 in and CO

2 out)

■ Gases are directly exchanged between sponge’s cells and the surrounding water.

Recall Cellular Respiration

1. What cell organelle performs cellular respiration?

2. What is the cellular respiration equation?3. What is the most important product of cellular

respiration? (Hint: Its not CO2)

4. What is this product used for?

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=WOQpVwXsOR1MQM&tbnid=Fnpz9hwZgaL5NM:&ved=0CAUQjRw&url=http://my.opera.com/shakeelashraf1/albums/showpic.dml?album=1272651&picture=18236531&ei=MdCKUsfMJsL72QWsxYH4Bw&bvm=bv.56643336,d.b2I&psig=AFQjCNEg0ehaW8aBxmbyV-jX65yPBhTCZg&ust=1384915346699585

Asexual Reproduction

◻ Budding from existing structure

Budding: When a new organism grows out of its parent.

Sexual Reproduction

◻ Meiosis occurs in Mesohyl◻ Sponges are

hermaphroditic

■ Sperm is released

■ Travels to egg

■ Develops into larva

■ Larva finds suitable location to grow into new sponge

Larva: An immature form of an animal that looks very different from the adult.

Why is water important to sponges?

◻ For food

◻ For oxygen

◻ For waste

◻ For reproduction

◻ For Transporting larva

How do currents move?

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=WzNXRjAKBcc4uM&tbnid=4Bd5Gw0nEkeHbM:&ved=0CAUQjRw&url=http://sites.google.com/site/animalbiologyspring2010/porifera/life-cycle&ei=DdGKUsP2Guao2wW594CYBA&bvm=bv.56643336,d.b2I&psig=AFQjCNF3Rkfo-Wrz1_AQernYZieNdKImBA&ust=1384915569211856

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=GbAzPhAeWHVj5M&tbnid=yTXtd0ZxQ78gjM:&ved=0CAUQjRw&url=http://www.uic.edu/classes/bios/bios100/labs/animaldiversity.htm&ei=n9GKUrrBG8uN3AXLYg&bvm=bv.56643336,d.b2I&psig=AFQjCNEN9G1f0r1tjNyyOf8RmT3c7UulJg&ust=1384915726843099

Cnidarian Body Structure

◻ Polyp (Hydras, corals, and sea anemones)⬜ Sessile

⬜ Produces medusa during reproduction

◻ Medusa (Jellyfish)

⬜ Motile structure

Anatomy of Cnidarians

Cnidarian Food Capture

Nematocysts - Stinging Cells

⬜ Thread like structure that shoots out (some have venom)

⬜ Trigger initiates stinging

⬜ Tentacles pull prey into mouth

⬜ Digest in gastrovascular cavity

Cnidarian Nervous System

Cnidarian Muscle System

◻ Cnidarian muscles - various functions, such as feeding, escape, locomotion and defense

◻ Works with nervous system

Cnidarian Reproduction

◻ Asexual - Budding & regeneration

Cnidarian Reproduction

Sexual -

Coral

◻ Colonies of polyps⬜ Coral reefs form when polyps secrete calcium

carbonate

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=JygHJm2fb-UjdM&tbnid=pLMuGkgt8UoyzM:&ved=0CAUQjRw&url=http://www.tutorvista.com/content/biology/biology-iii/animal-kingdom/phylum-coelenterata.php&ei=2H6NUqe8BsSZrAGTqYD4DQ&psig=AFQjCNGRLwASWS5rVzOwb9x4Vk-sQmt5BA&ust=1385091125962286

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=41Pa0Oi_7Dw8AM&tbnid=eN6GkKjiY5o0NM:&ved=0CAUQjRw&url=http://www.picture-newsletter.com/corals/&ei=-36NUoONE4W8rgHm64HIAQ&psig=AFQjCNED5nx1rRy0GHL6GLb6y9py4k2mSQ&ust=1385091182347000

Portuguese Man o’ War

◻ Not a jellyfish◻ Floating colony of

polyps (1000 or more individuals)

◻ Stings can leave whip-like wounds

Coral Reef Destruction

◻ Climate Change

◻ Overfishing

◻ Land Based Pollution

Coral Bleaching

◻ Changes in conditions such as temperature, light, or nutrients, they push out the symbiotic algae living in their tissues, causing coral to turn completely white

Ancestral Protist

Porifera

Cnideria

Platyhelminthes

Nematoda

Mollusca

Annelida Echinodermata

ChordataArthropoda

Which phyla are annelids most closely related to?

http://www.wshs.fcps.k12.va.us/academic/science/1project/zoo01/zooper4/zoopor/porifera.htm

http://www.wshs.fcps.k12.va.us/academic/science/1project/zoo01/zooper6/zoocni/cnidaria.htm

http://www.wshs.fcps.k12.va.us/academic/science/1project/zoo01/zooper6/zooech/echinode.htm

http://duane.zehr.com/explorer/fireworm.jpg

http://www.nhm.ac.uk/hosted_sites/tcp/hlun.jpg

Worms

◻ Flatworms (platyhelminthes)

◻ Roundworms (nematoda)

◻ Segmented worms (annelida)

Characteristics of Worms

◻ Invertebrates◻ Bilateral symmetry◻ Tissues, organs, and organ systems

Worm Nervous System

◻ Nervous system⬜ Brain

⬜ sense organs at the front

Worm Reproduction

◻ Primarily Sexual Reproduction⬜ Worms are typically

hermaphroditic

⬜ Join at clitellum and exchange sperm

⬜ Clitellum pushes sperm to ovaries for fertilization

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=FemNJRekQmXMDM&tbnid=jLyrPBbYTMN8mM:&ved=0CAUQjRw&url=http://biologytb.net23.net/text/chapter23/concept23.6.html&ei=9HGSUuPjGYi4rgH4yYDwDA&bvm=bv.56988011,d.aWM&psig=AFQjCNETeylpVqnlqe7B7-JOt13XARAb_g&ust=1385415513941582

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=Ues32ZLRCxb-9M&tbnid=d1cgEihE2uOk4M:&ved=0CAUQjRw&url=http://www.biologyjunction.com/earthworm_dissection.htm&ei=J3uSUtb0H9LtqQH_4YGYAg&bvm=bv.56988011,d.aWM&psig=AFQjCNH01FYhRNH_sCwIzZvO8ydgY4raAQ&ust=1385417797766345

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=OvOzLUVsi7VGBM&tbnid=4Exl0905NXps3M:&ved=0CAUQjRw&url=http://kcomparitiveanatomyproject.wikispaces.com/&ei=Y3uSUtWMB86crQGK-oGYDw&bvm=bv.56988011,d.aWM&psig=AFQjCNEP7crbTaY3z9mwBJbfFAS0pntSyA&ust=1385417921281925

Phylum - Platyhelminthes (Flatworms)

Parasitic or free-living

⬜ Free living = does not live in or on another organism

2 Types of Platyhelminthes

1. Planarians ⬜ Scavengers ⬜ Inserts feeding tube into food

source and releases digestive enzymes, then sucks up partially digested food

⬜ Eye spots – detect light⬜ Olfactory cells – detect odors

Planarian regeneration 2 Types of Platyhelminthes

2. Tapeworms⬜ Parasites that live

in host’s digestive system.

⬜ Absorb digested food through their cuticle (skin).

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=v5HnTrr0sdFS-M&tbnid=q4w59FmGa5mhZM:&ved=0CAUQjRw&url=http://kids.britannica.com/comptons/art-26318/Prostheceraeus-a-flatworm-of-the-class-Turbellaria&ei=iXqSUsbOIs61rgHkr4Ao&bvm=bv.56988011,d.aWM&psig=AFQjCNGkS4QypkPW_ThaLAnzAfrkHqfZEQ&ust=1385417722122256

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=WU7d0ETemChZaM&tbnid=vDb6siEipoHAJM:&ved=0CAUQjRw&url=http://www.wellness24.org/fluke-parasites-the-intestinal-human-parasite-a-61.html&ei=sXqSUqWrGpS7qQGUkYCQCQ&bvm=bv.56988011,d.aWM&psig=AFQjCNHqk1kUap8VIilC5uErU7lqKyn00w&ust=1385417759775147

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=nVbf96HFiQZrYM&tbnid=RP_idH7C6Zkw0M:&ved=0CAUQjRw&url=http://www.glogster.com/old/view?nickname=slimshaddy123&title=what-if-we-could-regeneration-body-parts-like-planarian/&ei=T3aSUrjELM3cqwG41IGQAw&bvm=bv.56988011,d.aWM&psig=AFQjCNGAE15_XOepjInoe-SVoe2gWIDTMQ&ust=1385416543946870

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=5Nb75Una3haJ_M&tbnid=v8bkvPxhYkPEWM:&ved=0CAUQjRw&url=http://darwin.wcupa.edu/beneski/bio-515/f09/mohanty/Main/TPI5&ei=HXaSUuLXOcLnqwGohoGoBg&bvm=bv.56988011,d.aWM&psig=AFQjCNGAE15_XOepjInoe-SVoe2gWIDTMQ&ust=1385416543946870

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=ByX1fKlTbUM3SM&tbnid=AO9LlKVsW0u0XM:&ved=0CAUQjRw&url=http://snowbio.wikispaces.com/Planaria+(Platyhelminthes)&ei=enaSUvSGIsiurgGrroGoBg&bvm=bv.56988011,d.aWM&psig=AFQjCNFCrO_tViywSjcDXPMdfJs2FkO3Gw&ust=1385416672523792

Tapeworm Phylum - Nematoda (Roundworms)

◻ More advanced than platyhelminthes

◻ Defined digestive system

◻ Lack a circulatory system

◻ Many are parasitic

Phylum - Annelida (Segmented Worms)

◻ Segmentations called septa

◻ Organs distributed by segment

◻ Closed circulatory system - blood flows through vessels

⬜ How is this different from an open circulatory system?

◻ One way digestive system

⬜ Eat decaying matter

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=bQsSxulHfOrrYM&tbnid=CZ9C35prfz-vFM:&ved=0CAUQjRw&url=http://www.vcahospitals.com/main/pet-health-information/article/animal-health/tapeworm-infection-in-dogs/949&ei=x3WSUta1CMahqQHMoYDIBQ&bvm=bv.56988011,d.aWM&psig=AFQjCNErCucOwLYE3Nx_BLplpfoi9i8Xlg&ust=1385416394172762

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=GbAzPhAeWHVj5M&tbnid=jB3o_O-TrO8mnM:&ved=0CAUQjRw&url=http://www.uic.edu/classes/bios/bios100/labs/animaldiversity.htm&ei=4HaSUq38I8b1qAH80oDoDA&bvm=bv.56988011,d.aWM&psig=AFQjCNHH1P2vBC2CrHVjCDdPVT1WvIhX0w&ust=1385416757551130

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=Ues32ZLRCxb-9M&tbnid=n8Nx_1E5DoGwhM:&ved=0CAUQjRw&url=http://www.biologyjunction.com/earthworm_dissection.htm&ei=M62UUoCKOM76oASn2oKgBw&bvm=bv.57155469,d.cGU&psig=AFQjCNEOoqG5JrXVMgDOq6KC6-ZPDyrCCw&ust=1385561277836710

Review

◻ What are the three phyla of worms.

⬜ How are they different?

◻ What are the two types of platyhelminthes?

⬜ How are they different?

◻ Which organism, from Ch 9, has the most complex organ systems?

chapter 9scampos77.weebly.com/uploads/6/9/3/7/69372235/chapter_9_notes... · cnidarian nervous...

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