1. Centipedes are invertebrates because they don't have a back bone, they have many different sections to their bodies which helps them move. They are considered arthropods because they have a long flat body and numerous legs. The antenna on their heads helps them sense and feel for things to know where they are going. They are usually poisonous and prey on other insects using the pincers near their butt.
2. Snails, unlike centipedes, move at a really slow rate. Centipedes have many many legs which helps them move at a really quick speed. The have a soft body and a hard shell that protects them from preys. They leave a trail of slime that comes from their body. Similar to centipedes, they have tentacles that helps them sense what's around them just like the centipede's antennas.
3. Spiders are also invertebrates because they have no back bones. But they are no like centipedes because they have two body parts instead of many. They are called arachnids with a cephalothorax and abdomen. They have eight legs which is two more than the common bugs with six. But unlike both the snail and the centipedes, they use mandibles to sense what's around them.
Sources:
http://www.google.com/imgres?um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1366&bih=575&tbm=isch&tbnid=Qgh1_FhyDIViAM:&imgrefurl=http://lancaster.unl.edu/pest/resources/centipedemillipede012.shtml&docid=LGD11myNJS2RFM&imgurl=http://lancaster.unl.edu/pest/images/CentipedeMillipede/gardncnt.jpg&w=600&h=406&ei=iYbWT6-IFeGi2gXPo_i6Dw&zoom=1&iact=hc&vpx=336&vpy=204&dur=64&hovh=185&hovw=273&tx=159&ty=98&sig=114823444161963020132&page=1&tbnh=163&tbnw=264&start=0&ndsp=10&ved=1t:429,r:1,s:0,i:157
http://www.google.com/imgres?um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1366&bih=575&tbm=isch&tbnid=5d7lcuItLYbOBM:&imgrefurl=http://www.naturephoto-cz.com/copse-snail-photo-1224.html&docid=_sJGelxOhSpg3M&imgurl=http://www.naturephoto-cz.com/photos/others/copse-snail-25279.jpg&w=600&h=422&ei=tobWT9fGE4Oq2QXH2oTADw&zoom=1&iact=hc&vpx=108&vpy=274&dur=1641&hovh=188&hovw=268&tx=94&ty=134&sig=114823444161963020132&page=1&tbnh=162&tbnw=203&start=0&ndsp=10&ved=1t:429,r:5,s:0,i:157
http://www.google.com/imgres?um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1366&bih=575&tbm=isch&tbnid=s2SSP38NGAJHVM:&imgrefurl=http://en.wikipedia.org/wiki/Spider&docid=FGdZDFN6y5fUhM&itg=1&imgurl=http://upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Orb_weaver_black_bckgrnd03_crop.jpg/250px-Orb_weaver_black_bckgrnd03_crop.jpg&w=250&h=188&ei=7IbWT6WzNYno2QWG4vGNCw&zoom=1&iact=hc&vpx=288&vpy=232&dur=1389&hovh=150&hovw=200&tx=63&ty=101&sig=114823444161963020132&page=1&tbnh=150&tbnw=200&start=0&ndsp=12&ved=1t:429,r:1,s:0,i:157
No comments:
Post a Comment