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anatomy-1 - Important Announcements •  bspace survey...

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Important Announcements! bspace survey due on Monday If you ʼ ve done the assignment but not yet gotten a grade…..your last name most likely starts with D-Z – All grading should be completed by the 15 th .
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Student questions Niche: describes a species relationship to other organisms in the ecosystem; usually refers to how an organism uses resources (food, egg laying places, etc), responds to competition and predation, and how it impacts other species in the ecosystem Insect orders: included in the previous lecture slides and on the phylogeny (e.g., Diptera, Coleoptera, Hemiptera, Lepidoptera….)
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ESPM 40: Basic Insect Anatomy and Morphology How do insects differ from vertebrates? What are the main components of the exoskeleton? What is sclerotization? What are the benefits and detriments to having an exoskeleton? Name the different kinds of insect mouthparts and describe how they are used. Discuss the major types of insect legs and how they are used.
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anterior (head) posterior (tail) dorsal (back) ventral (front)
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Insects are upside down! Vertebrates – nerve cord extends along dorsum Insects – ventral nerve cord
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Insects are upside down! Vertebrates – closed circulatory system is ventral Insects – dorsal vessel and open circulatory system
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Insects are inside out!
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