Download - Intro to Animals (EUMETAZOA)
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Intro to
Animals(EUMETAZOA)
Image from: http://animaldiversity.ummz.umich.edu/index.html
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Porifera
Cnidaria
Platyhelminthes
sponges jellyfish flatworms roundworms
Nematoda
Mollusca Arthropoda Chordata
Annelida Echinoderm
mollusks
multicellularity
Ancestral Protist
tissues
bilateral symmetry
body cavity
segmentation
Animal Evolution
eucoelom
starfish vertebrates
endoskeleton
segmentedworms
insectsspiders
backbone
Diagram from slide show by Kim Foglia
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Animals
Invertebrates(animals without a backbone)
PoriferaCnidariaWormsMollusksEchinodermsArthropods
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KingdomAnim
alia
Subphylum Vertebrata
Animals with backbones
FishAmphibiansReptilesBirdsMammals
Phylum Chordata
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LIFE ON EARTH
Image from: http://ology.amnh.org/biodiversity/treeoflife/pages/graph.html
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Characteristics of ALL Animals:
1.Eukaryotic2. Heterotrophic3.Multicellular/differentiated
cells4.Cells have NO cell walls5. Movement6. Reproduction (Most sexual)
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Body Systems :_____________________ OUTSIDE BODY COVERING
(fur, skin, scales, feathers)
INTEGUMENTARY
Covers and protects, ID,prevents heat & water loss
Orangutan image from: http://www.biologycorner.com/webquests.phpFish image from:http://www.woodburning.com/fish/ Frog image from: http://gladstone.uoregon.edu/~mmorley/rainbow/green%20frog.jpgCardinal image from: http://www.nps.gov/fopu/pulaskione/GRAPHIC/IMAGES/birds/Northern%20Cardinal.jpg
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Body Systems :
_________________Breaks down food to obtain nutrients
& gets rid of undigested waste
DIGESTIVE
Image from: http://infozone.imcpl.org/kids_diges.htm
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NO OPENINGS:Food enters through cell surface
EX: tapeworm
EX: sponges
Sponge images from Animals slide show by Kim Foglia @ http://www.explorebiology.com
Image by Riedell
http://www.tape-worm.info/
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ONE OPENING combined digestive/circulatory space= GASTROVASCULAR CAVITY
FOOD IN and WASTE OUT through same opening
Images from: http://www.geocities.com/animalbio/biology/DIGESTIO.gifhttp://contanatura.weblog.com.pt/arquivo/2005/09/imortalidade_pr.htmlhttp://www.explorebiology.com
EX: jellyfish, hydra, planaria
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TWO OPENINGS: FOOD IN at one end (mouth) WASTE OUT at other end (ANUS)
Image from: http://www.geocities.com/animalbio/biology/DIGESTIO.gif
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Two openings: Most efficient
If food flows only one direction it allows for organ specialization(Different parts can start to do different jobs)
Image from: http://www.geocities.com/animalbio/biology/DIGESTIO.gif
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Body Systems :__________________
Transports nutrients/oxygen to body cells
Carries carbon dioxide/nitrogen waste away from cells
Circulatory fluid can be: inside blood vessels = _________
loose inside body spaces = _______
CIRCULATORY
CLOSEDOPEN
Image from: http://www.agen.ufl.edu/~chyn/age2062/lect/lect_19/147a.gif
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IMMUNE SYSTEM
http://fig.cox.miami.edu/~cmallery/255/255ion/fig14X28.jpg
Protection against “foreign invaders”
http://www.biology.arizona.edu/IMMUNOLOGY/tutorials/antibody/structure.html
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Body Systems :___________________RESPIRATORY
Image from: http://www.umm.edu/respiratory/images/respiratory_anatomy.gif
Exchange gases with the environment
• take in oxygen • remove waste gases (CO2 &/or
ammonia)
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GAS EXCHANGE THROUGH SKIN
BOOK LUNGS TRACHEA & SPIRACLES
http://science.kennesaw.edu/~jdirnber/InvertZoo/LecArthropod/SpiderX.jpg
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GILLS
LUNGS
http://www.ciggyfree.com/cigblog/wp-content/uploads/2007/02/lungs.gif
trachea
anteriorair sacs
lung
posteriorair sacs
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BREATHING WITH LUNGS
• Positive pressure• Air pushed into
lungs
• Negative pressure• Air pulled into lungs (diaphragm)
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UNIQUE BIRD LUNGS
Animation from: http://www.sk.lung.ca/content.cfm/birds
AIRS SACS ATTACHEDTO LUNGSALLOW OXYGEN IN LUNGS on theINHALE and on the EXHALE
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Body Systems :
___________________
• Collect and remove nitrogen waste made by cells
• Help with HOMEOSTASIS by maintaining water/ion balance
(_________________________)
EXCRETORY
OSMOREGULATION
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NITROGEN WASTE :_________________ Most TOXIC
Must be removed QUICKLY Needs MOST water to dilute
______________ Made from ammonia by liver Less toxic than ammonia Can be stored if diluted with water
(Needs less water to dilute than ammonia)
______________ LEAST TOXIC Can be stored if diluted with water (Needs LEAST amount of water to
dilute)
AMMONIA
UREA
URIC ACID
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NITROGEN WASTEhttp://www.anselm.edu/homepage/jpitocch/genbio/nitrowaste.JPG
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ALL WASTE is NOT THE SAME!DIGESTIVE WASTE
NITROGENWASTE
WHERE IT’S MADE?
Body system used?
In what form?
made by cells from break down of proteins & nucleic acids
Handled by excretory system
ammonia, urea, or uric acid(waste + water = urine)
Feces (poop)
left over from undigested food
Handled by digestive system
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• NEPHRIDIA• MALPIGHIAN TUBULES• FLAME CELLS• KIDNEYS
http://science.kennesaw.edu/~jdirnber/InvertZoo/LecArthropod/SpiderX.jpg
http://www.emc.maricopa.edu/Faculty/Farabee/BIOBK/insectexcret_1.gif
http://www.pleasanton.k12.ca.us/avhsweb/thiel/apbio/review/excretory.html
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Body Systems : ___________________
Framework to support body/protection
Skeleton on inside = _______________
Skeleton on outside = _______________
SKELETAL
ENDOSKELETON
EXOSKELETON
Walking skeleton image from: http://virtualastronaut.jsc.nasa.gov/textonly/act15/text-skeletonpuz.html
Insect lefg image from:http://www.zoobooks.com/newFrontPage/animals/virtualZoo/animals/i/insects/images/exoskeleton.gif
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Body Systems : _______________
Locomotion- move body itself
OR
move substances through body (EX: food through digestive system; blood through vessels)
MUSCULAR
Image from: http://kidshealth.org/kid/body/muscles_noSW.html
http://www.angliacampus.com/public/sec/science/nutriton/images/peristal.gif
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Produce offspring using genetic material from only 1 parent =_______________________
Body Systems : _____________________ -
Produce offspring by combining genetic material from 2 parents = __________________________
REPRODUCTIVE
SEXUAL REPRODUCTION
ASEXUAL REPRODUCTION
Family image from: http://babyhearing.org/Parenet2Parent/index.aspPlanaria animation: http://www.t3.rim.or.jp/~hylas/planaria/title.htm
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REPRODUCTIVE ______________ DEVELOPMENT
immature LARVA looks different than adult
__________ DEVELOPMENT young are smaller versions on adults
INDIRECT
DIRECT
Metamorphosis image from: http://www.lincoln.midcoast.com/~del/butterflyFrog image from: http://www.animationlibrary.co
Image from: http://www.bcps.org/offices/lis/models/life/images/grow.JPG
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Sperm and egg join outside female’s body = ___________________
Sperm and egg joininside female’s body = ____________________
External fertilization
Internal fertilizationAnimation from: http://discover.edventures.com/images/termlib/f/fertilization/support.gif
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___________________
Receive sensory infoabout environment &
send response signals
NERVOUS
http://www.roadhunter.com/~ceph/gallery/anatomy07.jpg
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__________________
Make hormones that regulate other body systems
ENDOCRINE
Image from: http://www.cushings-help.com/images/endocrine.jpg
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Kinds of Symmetry
Asymmetry Radial Bilateral
Images from: http://mbgnet.mobot.org/salt/animals/sponges.htmhttp://biodidac.bio.uottawa.ca/http://sps.k12.ar.us/massengale/animal%20dissections.htmhttp://www.okc.cc.ok.us/biologylabs/Documents/Animals/Symmetry.htm
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DORSAL
POSTERIOR
VENTRAL
ANTERIOR
Animation from: http://bestanimations.com
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________________Concentration of nervous tissue and
sensory organs in anterior end of an organism (head area)
• First seen in Platyhelminthes (flat worms)• Associated with bilateral symmetry• Efficient response to stimulus• Sense organs encounter environment first
CEPHALIZATION
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EMBRYOLOGY
Image from: http://calspace.ucsd.edu/virtualmuseum/litu/03_3.shtml
1. Where does BLASTOPORE end up?2. What do embryos look like as they divide?3. When do cells decide what they will be?
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Image from: http://io.uwinnipeg.ca/~simmons/16cm05/1116/16anim3.htm
EMBRYONIC DEVELOPMENT
Becomes digestive system
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1.Where does BLASTOPORE end up?
Images modified from: http://io.uwinnipeg.ca/~simmons/16cm05/1116/16anim3.htm
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What do embryos look like as they divide?
Images from: http://www.zo.utexas.edu/faculty/sjasper/images/so28_04.gif
SPIRAL RADIAL CLEAVAGE CLEAVAGE
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When do cells decide what they will become?
Image from: http://www.rbej.com/content/figures/1477-7827-1-100-1.jpg
Embryonic Stem Cells
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Images modified from: http://www.rbej.com/content/figures/1477-7827-1-100-1.jpg
Cells decide early Cells decide later
Removing cell causes death Removing cell OK
DETERMINATE INDETERMINATE
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THAT’S WHERE TWINS COME FROM !
DIZYGOTIC TWINS(Fraternal twins)DIFFERENT DNA
MONOZYGOTIC TWINS(Maternal twins)Identical DNA
ONLYDeuterostomescan have identical twins!
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ANIMALS(Triploblastic)
Blastopore becomes MOUTH
Blastopore becomes ANUS
Decide very early (DETERMINATE)
Decide later(INDETERMINATE)
MOST INVERTEBRATESexcept ECHINODERMS
ALL VERTEBRATES (Fish, amphibians, birds, reptiles, mammals)plus ECHINODERMS
SPIRAL cleavageRADIAL cleavage
PROTOSTOMES DEUTEROSTOMES
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“Exception to the rule” ECHINODERMS ARE
THE ONLY INVERTEBRATEDEUTEROSTOMES
Image from: http://www.bsac21.freeserve.co.uk/images/Critters/Starfish%20Bloody%20Henry.JPG
Porifera and Cnidarians have only TWO germ layersNot considered PROTOSTOMES
http://z.about.com/d/healing/1/0/Y/O/gtotem_jellyfish.jpg
http://my3boysandi.files.wordpress.com/2007/11/spongebob_1.jpg
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BODY PLANINVERTEBRATES• Dorsal heart• Ventral nerve cord
VERTEBRATES• Ventral heart• Dorsal nerve cord
http://animaldiversity.ummz.umich.edu/site/resources/biodidac/crus001and2b.gif/small.jpg
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Image from: http://io.uwinnipeg.ca/~simmons/16cm05/1116/16anim3.htm
GASTRULATION-cells move inward overlip of blastoporeTHREE germ layers form
Becomes digestive system
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All animals have 3 germ layers = TRIPLOBLASTICExcept: sponges, jellyfish, anemones = DIPLOBLASTIC
Endoderm
Mesoderm
Ectoderm
Muscle, excretory, bones,circulatory
Digestive system, respiratory
Outer skin, brain, nervous system
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Types of Coeloms (See-Lums)
No cavity (space) around organs
Image from: http://io.uwinnipeg.ca/~simmons/16labman05/lb5pg10.htm
ACOELOM = “without space”
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FLATWORMS are ACOELOMATES!
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Types of Coeloms (See-Lums)Space around organs but only lined
with mesoderm on one side (lines body wall BUT NOT around gut) Image from: http://io.uwinnipeg.ca/~simmons/16labman05/lb5pg10.htm
PSEUDOCOELOM
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ROUND WORMS are PSEUDOCOELOMATES!
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Kinds of Coeloms (See-Lums)
EUCOELOM: Body cavity (space) lined on BOTH sides by mesoderm
Image from: http://io.uwinnipeg.ca/~simmons/16labman05/lb5pg10.htm
EUCOELOM = TRUE COELOM = COELOM
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EUCOELOMATESALL VERTEBRATES & MOSTINVERTEBRATES
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3 Types of Coeloms
ectodermmesodermendoderm
Image from: http://www.lander.edu/rsfox/310images/310bil5.jpg
ACOELOM
PSEUDOCOELOM
EUCOELOM
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FUNCTIONS of having a COELOM (body space):
In animals without a skeleton- Fluid in coelom space can act as a HYDROSTATIC skeletonIn animals without blood vessels-
Fluid in coelom space can circulate nutrients and oxygen to cells
Provides space/cushion internal organs
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ADVANTAGE OF a EUCOELOM?
Digestive organ muscles and body wall muscles come from MESODERM in different places so organism can digest food and move at same time.
Images from: http://www.lander.edu/rsfox/310images/310bil5.jpg http://www.okc.cc.ok.us/biologylabs/Images/Animal_Images/coelomate.gif
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ECTOTHERMICADVANTAGES: Slow metabolism means you can survive on 1/10 the food as a same size endotherm
DISADVANTAGES:• Can’t to live in extremely cold places (NO reptiles in Arctic)
• Can’t keep up max activity level for long
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Endothermic “warm-blooded”• Create own body heat
• FAST metabolism allows for:
high activity for extended time
ability to live in variety of environments
• EX: Birds, Mammals
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SOURCES
Crab from: http://www.gifs.net
Ant from: http://www.wildaboutbritain.co.uk
Clam from: http://sps.k12.ar.us/massengale/animal%20dissections.htm
Anemone from: http://www.oum.ox.ac.uk/children/animals/cnidaria.gif
Snail from: http://www.lucinda.net/surber/graphics/orlovsky.gif
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Starfish from: http://www.gifs.net
Millipede from: http://atschool.eduweb.co.uk/sirrobhitch.suffolk/key/images/invertebrates/millipede.jpg
Jellyfish from: http://www.aloha.com/~lifeguards/jellie75.jpg
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Turtle: http://www.50birds.com/images/endttboxturtle.jpg
Tree frog: http://www.dynamicearth.co.uk/education/images/tree_frog.jpg
Bird: http://people.eku.edu/ritchisong/homepage.htm
Orangutan: http://www.biologycorner.com/webquests.php
Fish from: http://www.chm.bris.ac.uk/motm/trimethylamine/fish.gif
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Earthworm : http://www.york.ac.uk/org/ciec/CaringfortheEnvironment.29. 4.03/Exxon/Food%20Chain%20images/ExxonPicsLarge/Earthworms.jpg
Crab from: http://www.animation-station.com/fish/index.php?page=2
Snail from: http://www.lucinda.net/surber/graphics/orlovsky.gif
Starfish from: http://www.gifs.net
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All images on this page from: http://www.seaworld.org/AnimalBytes/animal_bytes.html