Arthropods Essay

This essay has a total of 150 words and 3 pages.

arthropods



Section 2 - Arthropods

Arthropods are invertebrates that have external skeleton, segmented bodies, and
appendages; they have open circulatory systems; they reproduce sexually


The outside skeleton is made of up of chitin and is called the exoskeleton; the process of
shedding an exoskeleton is called molting


The major groups of arthropods are crustaceans, arachnids, centipedes, millipedes, and insects

Crustaceans:
-two or three body sections
-three pairs of appendages for chewing
-two pairs of antennae
-five or more pairs of legs
-develop into adults by metamorphosis
-live in water or damp places
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  • The Class Insecta
    The Class Insecta Amit Gupta Biology Scott-3 April 01, 2001 Research Project: Class Insecta Insects are invertebrates in the class Insecta from the phylum arthopoda. Arthropods include more than 850,000 species and form by far the largest phylum in the animal kingdom, exceeding in number all the other Phyla combined. The characteristic tough exoskeleton and jointed limbs are superimposed in a segmental body plan that reflects the evolution of arthropods from ancestors of the annelid worm. Insect