Arthropods: Insects

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by 18KONeal
Last updated 4 years ago

Discipline:
Science
Subject:
Biology
Grade:
9

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Arthropods: Insects

Jointed AppendagesParts attatched to the insects segments that are jointed. Connects the head to the thorax and the thorax to the abdomen.

Arthropods: Insects

ExoskeletonThe exoskelteon surroounds the jointed appendages and bodies of insects. Layers of proteins and polysaccarides called chitin make up this exoskeleton. Lipids make the exoskeleton waterproof to protect the arthropod. Muscles attatch to knobs on the inside of the exoskeleton allowing the exoskeleton to move with the insect.

MetamorphosisProcess an arthropods body undergoes to change from sexualy immature to sexually mature. After metamophosis there is no more growth. There are two types of metamorphosis. Incomplete and complete metamorphosis.

SymmetryAll insects have bilateral symmetry, meaning if cut in half vertically the two halves would be equal.

CoelomThe coelom is the cavity in the body that holds all the digestive organs. Insects do have a coelom.

Different TypesThere are mulitple different species of insect. Incomplete metamophosis species such as dragonflies and species with complete metamorphosis such as butterflies and moths.

BibliographyA.M., Wendy, Dr. "Animal Body Plans and Movements: Symmetry in Action." Decoded Science. N.p., 14 May 2012. Web. 9 Apr. 2015.Heyden, Robin J., Brad Williamson, and Neil A. Campbell. Biology: Exploring Life. Boston: Pearson/Prentice Hall, n.d. Print."invertebrate." Compton's by Britannica, v 6.0. 2009. eLibrary.

MoltingInsects molt or shed their exoskeleton when they out grow their previous one. New layers of chitin build up under the surface of the exoskeleton and when the new one has formed fluid flushes away the old exoskeleton.

Compound eyesConsist of many facets that allow the insect to have a moer precise detection of shapes and movements in comparison to simple eyes.

Kara O'NealApril 10, 2015Period 1


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