Why Study insects? Entomologists are? How many insects are there? 75% of all animals are insects!!

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Presentation transcript:

Why Study insects? Entomologists are? How many insects are there? 75% of all animals are insects!!

Insects are Arthropods Have jointed legs Exoskeleton Arthro-joints Poda-legs

Features Insects-largest number of invertebrates Have three body parts –Head, thorax, abdomen –Antennae –May or may not have wings –Six legs attached to the thorax –exoskeleton

Insects Why are insects needed for the earth? 1.help to develop medicine 2. helps the chain of life 3.recyclers of the earth

Metamorphis Two kinds of metamorphis –Complete and incomplete –Egg, larva, chrysalis, adult

Incomplete Metamorphis Egg, small (aphid)or a nymph, and adult Nymph-small adult w/o wings Beetles are a great example Molting: get rid of their skin

Spiders/ticks Arachnids Have two body parts: head abdomen Eight legs No antennae Exoskeleton Spinnerets Lobsters, scorpions