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Invertebrates B

QuestionAnswer
definition of metamorphosis growth and development
direct metamorphosis the egg hatches to a stage that looks like an adult, but is smaller and not mature
incomplete metamorphosis (simple or gradual) ex. dragonflies the egg hatches to a small larva which may look different from the adult (called a nymph or naiad)
complete metamorphosis ex. moth the egg hatches into a larva(eats a lot, then changes into a pupa (neither eats or moves)and then hatches into an adult
insects body is divided into three sections: head, thorax, abdomen
compound eyes on insect made up of many eyes
only invertebrates that fly insects
coleoptera (beetles) more than 200,000 different species
Insects largest arthropod group more than 25 orders adapted to live in almost every habitat on land, in water, and in the air
arthropods that are carnivores centipedes
arachnids -8 legs and 2 body parts spiders, harvestmen(daddy longlegs),scorpions, ticks, mites, horeshoe crabs and sea spiders
examples of crustaceans crab, lobster, shrimp,prawn, freshwater crayfish,barnacles,water fleas (Daphnia)
"terrestrial crustaceans" mean crustaceans that live on land
isopods -type of crustacean- have legs that all look the same like pill bugs (roly poly) and sow bugs
exoskeleton skeleton on the outside of the body
"arthro- " means jointed (think arthritis refers to joint inflamation)
"-pod" means leg
description of crustaceans body many body segments, adn many legs (at least10); often have claws or pinchers and 4 antennae; almost all live in water and have gills
Created by: lbmom
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