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Arthropods Notes Open note quiz 28.1 • 1. What material makes up the exoskeleton of the arthropod? • 2. What does the term “arthropod” refer to? • 3. What has the evolu@on of arthropods led to in terms of segmentaon? • 4. list one type of respiratory structure in arthropods • 5. what type of circulatory system does an arthropod have? • 6. What body system controls mol@ng? • 7. List something from the notes that clearly shows me you took the notes. 1. Comparison of arthropod groups • 2. Class Crustacea: crabs, lobsters, barnacles – 3 two/three body sec@ons (head, thorax, abdomen) – 3. chewing mouthparts • 2. Class Arachnida: spiders, @cks, mites, scorpions – 3. Four pair of legs on thorax – 3. Two body regions: Cephalothorax & abdomen hUp://video.naonalgeographic.com/video/animals/bugs-animals/spiders-and- scorpions/spider_orb_kills_bat/ Gall mites cause the red bumps on sycamore tree Eyelash mites Scorpions under black light Crayfish test tomorrow • Match the structures with the pictures from the website. • Match the terms with their func@ons. • TAKE YOUR 2 STUDY GUIDES HOME! • 2. Class Merostomata- horseshoe crabs Horseshoe crabs value to medicine http://videos.howstuffworks.com/discovery/27841-assignment-crab-horseshoe-crabs-blue-blood-video.htm http://www.youtube.com/watch?v=e8KlAmtIu1E Phylum arthropoda con@nued • 2. Class Insecta 3. Traits 4. 3 body regions (head, thorax, abdomen) 4. 3 pair of legs (on thorax) 2. Life cycles of insects- metamorphosis 3. complete metamorphosis * egg-larva- pupa - adult 3. Incomplete metamorphosis * egg- nymph- adult http://animal.discovery.com/videos/ monsters-inside-me-bedbug- bites.html 2. Insects that cause destruc@on * termites •Boll weevils •Japanese beetles 2. Insects that cause disease * mosquitoes- malaria * fleas- bubonic plague 2. Benefits of insects * pollinaon * food products 1. How do insects communicate? 2. Visual cues 4. light 4. Bee dance; direction, distance, type of food 1. How do insects organize their colonies? 2. each member has a role (job) 3. queen – makes eggs 3. drones- males that mate with queen 3. workers- gather food, protect hive, care for young * queen *workers * drone 1.How do arthropods respire? 2. Structures for respiraon 3. spiracles – trachea – air sacs (insects) 3. spiracles – book lungs (arachnids) 3. gills (crustaceans) respiraon 1. How do arthropods carry oxygen? 2. Open circulatory system • w/ heart & os@a, open blood vessels, & • Blood cavies (sinuses) 1. How do arthropods get rid of wastes? 2. Malpighian tubes remove nitrogen wastes (like kidneys) • 3. simple diffusion in aquac animals Locomoon 1. What do arthropods use to Respond to their environment? • 2. well developed nervous system • 3 exhibits cephalizaon (brain) • 3 compound eyes or simple eyes 3. Reproducon • * Internal or external fer@lizaon 1. Phylum Arthropoda- jointed foot • 2. Traits common – * jointed appendages (offer greater range of moon) – * segmented body (similar to annelid ancestors) – * exoskeleton (made of chi@n) •Molts exoskeleton as it grows 2. Form & funcon • 3. Mouthparts for feeding- • Chewing • Sponging (soak up) • Lapping • Piercing .
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