Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Biol 11 Lesson 1 April 5 - Arthropoda (1)

2,713 views

Published on

Published in: Technology, Business
  • Be the first to comment

Biol 11 Lesson 1 April 5 - Arthropoda (1)

  1. 1. Phylum Arthropoda: Arthropods Chapter 28: Arthropods pp. 606-631
  2. 2. <ul><li>Biology fun facts of the day: </li></ul>No two human beings have the same fingerprint; likewise, no two spider webs are the same.
  3. 3. <ul><li>Mosquitoes dislike citronella because it irritates their feet. You're more likely to be a target for mosquitoes if you consume bananas. </li></ul>Biology fun facts of the day:
  4. 4. <ul><li>Each year, insects eat 1/3 of the Earth's food crop. </li></ul>Biology fun facts of the day:
  5. 5. <ul><li>Australian termites have been known to build mounds twenty feet high and at least 100 feet wide. </li></ul>Biology fun facts of the day:
  6. 6. Introduction to Arthropods <ul><li>Phylum Arthropoda - Latin arthro = “joint”, pod = “foot” </li></ul><ul><li>Bilateral symmetry </li></ul><ul><li>3 cell layers (ectoderm, endoderm, mesoderm) </li></ul><ul><li>Have a coelom (reduced to the excretory and reproductive systems) </li></ul><ul><li>Key features: </li></ul><ul><li>Jointed appendages </li></ul><ul><li>Exoskeleton (made of chitin) </li></ul><ul><li>Segmented body (head, thorax, abdomen segments) </li></ul><ul><ul><li>Probably evolved from segmented wormlike animals, similar to </li></ul></ul><ul><ul><li>modern annelids </li></ul></ul>
  7. 7. Subphyla of Arthropods <ul><ul><li>Subphylum Trilobita: ex: trilobites </li></ul></ul><ul><ul><li>Oldest subphylum, all extinct now, but ubiquitous for many era. </li></ul></ul><ul><ul><li>Subphylum Chelicerata: ex: spiders, scorpions, ticks, mites, horseshoe crabs, etc. </li></ul></ul><ul><ul><ul><li>Special mouthparts called chelicerae </li></ul></ul></ul><ul><ul><li>Subphylum Crustacea: ex: crabs, lobsters, shrimp, etc. </li></ul></ul><ul><ul><li>Over 35,000 species! </li></ul></ul><ul><ul><li>Subphylum Uniramia: ex: millipedes, centipedes, and all insects </li></ul></ul><ul><ul><li>Huge group! </li></ul></ul>
  8. 8. Form and Function of Arthropods <ul><ul><ul><li>Arthropods vary a lot , but share some key features: </li></ul></ul></ul><ul><ul><ul><li>Jointed appendages </li></ul></ul></ul><ul><ul><ul><li>Exoskeleton </li></ul></ul></ul><ul><ul><ul><li>Segmented body </li></ul></ul></ul><ul><ul><ul><li>Brain located in the dorsal part of the head </li></ul></ul></ul><ul><ul><ul><li>Ventral nerve cord </li></ul></ul></ul><ul><ul><ul><li>Open circulatory system powered by a single heart </li></ul></ul></ul>*3 most important features* Grasshopper diagram
  9. 9. Form and Function of Arthropods <ul><ul><ul><li>Digestive system: </li></ul></ul></ul><ul><ul><ul><li>Complete digestive tract (mouth  anus) </li></ul></ul></ul><ul><ul><ul><li>Many arthropods have specialized feeding parts </li></ul></ul></ul><ul><ul><ul><li>Every mode of feeding is seen </li></ul></ul></ul><ul><ul><ul><li>Examples: </li></ul></ul></ul><ul><ul><ul><li>Predators </li></ul></ul></ul><ul><ul><ul><li>Filter feeders </li></ul></ul></ul><ul><ul><ul><li>Parasites </li></ul></ul></ul><ul><ul><ul><li>Scavengers (detritivores) </li></ul></ul></ul><ul><ul><ul><li>Herbivores </li></ul></ul></ul><ul><ul><ul><li>etc. </li></ul></ul></ul>
  10. 10. <ul><ul><ul><li>Respiratory system: </li></ul></ul></ul><ul><ul><ul><li>1) Gills – feathery structures (ex: crustaceans) </li></ul></ul></ul><ul><ul><ul><ul><li>2) Book gills/lungs – pagelike sheets of respiratory tissue </li></ul></ul></ul></ul><ul><ul><ul><ul><li>(ex: chelicerates) </li></ul></ul></ul></ul><ul><ul><ul><ul><li>3) Tracheae – network of tubes that carry air (ex: uniramians) </li></ul></ul></ul></ul><ul><ul><ul><li>Circulatory system: </li></ul></ul></ul><ul><ul><ul><li>Open circulatory system </li></ul></ul></ul><ul><ul><ul><li>Well-developed heart pumps blood through arteries, which branch into smaller vessels which lead to open spaces called sinuses </li></ul></ul></ul>
  11. 11. <ul><ul><ul><li>Excretory system: </li></ul></ul></ul><ul><ul><ul><li>Malpighian tubules (terrestrial arthropods) </li></ul></ul></ul><ul><ul><ul><li>Gills or green gland (aquatic arthropods) </li></ul></ul></ul><ul><ul><ul><li>Nervous system: </li></ul></ul></ul><ul><ul><ul><li>All arthropods have a brain that consists of a pair of ganglia </li></ul></ul></ul><ul><ul><ul><li>Ventral nerve cord </li></ul></ul></ul><ul><ul><ul><li>Ganglia along nerve cord </li></ul></ul></ul><ul><ul><ul><li>Many sense organs may </li></ul></ul></ul><ul><ul><ul><li>be present </li></ul></ul></ul><ul><ul><ul><li>Examples: </li></ul></ul></ul><ul><ul><ul><li>Eyes (compound or simple) </li></ul></ul></ul><ul><ul><ul><li>Antennae </li></ul></ul></ul><ul><ul><ul><li>Statocysts </li></ul></ul></ul><ul><ul><ul><li>Tympanic membrane </li></ul></ul></ul><ul><ul><ul><li>Chemoreceptors </li></ul></ul></ul>
  12. 12. <ul><ul><ul><li>Musculoskeletal system: </li></ul></ul></ul><ul><ul><ul><li>Movement only at joints </li></ul></ul></ul><ul><ul><ul><li>Muscles attached to inside of exoskeleton </li></ul></ul></ul><ul><ul><ul><li>Arthropods moult when they grow because exoskeleton won’t expand </li></ul></ul></ul>Freshly moulted crab Crab moult Cicada moult
  13. 13. Babies look like miniature adults . They increase in size as they grow older, but do not change overall form . Ex: grasshopper Eggs hatch into larvae (immature stages that do not look like adults). As larvae grow, they change shape dramatically. Ex: butterfly, bees, wasps
  14. 14. Ecology of Arthropods <ul><li>Arthropods are the bottom of the food chain (ex: copepods) </li></ul><ul><li>Pollination – co-evolution with flowering plants </li></ul><ul><li>Symbiotic relationships (ex: cleaner shrimp and fish) </li></ul><ul><li>Food source for humans (especially crustaceans) </li></ul><ul><li>Useful chemicals </li></ul><ul><li>Honey, silk </li></ul><ul><li>Disease carriers (ex: mosquitoes, mites, ticks) </li></ul><ul><li>Crop destruction, pesticides </li></ul>
  15. 15. Video – “Arthropods”
  16. 16. Homework for next class: <ul><li>Complete Phylum Arthropoda worksheet </li></ul><ul><li>Read over class notes and check out the class blog: http://msoonscience.blogspot.com/ </li></ul>
  17. 17. Works Cited <ul><li>Images taken from the following sources: </li></ul><ul><li>http://www.news.cornell.edu/releases/Oct04/insects.openhouse.ssl.html </li></ul><ul><li>http://www.cracked.com/funny-1934-spiders/ </li></ul><ul><li>http://www.police.oakland.edu/fingerprints </li></ul><ul><li>http://www.kiwicare.co.nz/index.cfm/1,182,0,0,html/No-Mosquitoes-Citronella-Candle </li></ul><ul><li>http://www.dealspice.com/ </li></ul><ul><li>http://www.gardenguides.com/789-corn-rootworm-information.html </li></ul><ul><li>http://www.ent.uga.edu/veg/colecrops.htm </li></ul><ul><li>http://www.the-discount-travel-guide.com/Kakadu-National-Park.html </li></ul><ul><li>http://www.bio.miami.edu/dana/160/160S10_13print.html </li></ul><ul><li>http://www.thepoisonforest.com/?tag=trilobite </li></ul><ul><li>http://www.treehugger.com/files/2010/01/deadly-scorpion-venom-used-create-new-safer-pesticide.php </li></ul><ul><li>http://stirwordfest.wordpress.com/book-lung/ </li></ul><ul><li>http://www.brisbaneinsects.com/brisbane_insects/GrasshopperHead.htm </li></ul>
  18. 18. Works Cited <ul><li>http://www.wildsingapore.com/wildfacts/crustacea/moulting.htm </li></ul><ul><li>http://squirrelbasket.wordpress.com/2010/07/04/words-fledge-fletch-moult-mews-%E2%80%93-and-mould/ </li></ul><ul><li>http://rohlenscience.pbworks.com/w/page/7859192/Insects-Notes </li></ul><ul><li>http://www.buyinsectcollection.com/identifying_insects </li></ul><ul><li>http://www.bbcgoodfood.com/content/knowhow/glossary/honey/ </li></ul><ul><li>http://www.livingprairie.ca/livinglandscape/hikes/index.html </li></ul><ul><li>http://www.superstock.com/stock-photos-images/1532R-3016 </li></ul><ul><li>http://www.raisethehammer.org/article/640 </li></ul><ul><li>http://www.chacha.com/topic/arthropods </li></ul><ul><li>http://www.nooor.com/search/Invertebrate/&p=13 </li></ul>

×