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Gr 3 SC Ch 4
World of Invertebrates
| Term | Definition |
|---|---|
| invertebrates | animals without backbones |
| cold-blooded | having a body temperature that changes with the outside temperature |
| 5 ways invertebrates are alike: | 1. have NO backbone 2. usually have weak muscles 3. usually are small animals with soft bodies 4. if they have skeletons, the skeletons are on the OUTSIDE of their bodies for strength and protection 5. are cold-blooded |
| tentacles | arms of an octopus |
| camouflage | animals who look like or change colors to match their surroundings for protection |
| setae | special projections which help protect an earthworm from hungry birds |
| tube feet | special feet that starfish walk on |
| earthworm (# of hearts) | an invertebrate with ten hearts |
| octopus ( # of arms) | an invertebrate with eight arms |
| tentacles | the arms of an octopus |
| 3 ways all insects are alike: | 1. have six legs 2. have three body parts 3. have an outer skeleton |
| 3 sections of an insect's body: | 1. head 2. thorax 3. abdomen |
| spiracles | tiny breathing holes along the sides of an insect's abdomen |
| metamorphosis | the four stages of growth of most insects |
| four stages of metamorphosis | 1. egg 2. larva 3. pupa 4. adult |
| thorax | the middle part of an insect where wings and legs are attached and moved my muscles |
| abdomen | the end part of an insect which contains the insect's heart, stomach and spiracles |
| compound eye | an eye made of numerous lenses which work together as one eye |
| antennae | the feelers which are the main sense organs found on the head of an insect |
| mimicry | to look very much like something else, as when one harmless animal looks like a harmful one as a means of protection |
| spiderling | a young spider |
| ballooning | when a spiderling spins a silk thread to catch the wind to carry it away |
| 3 ways all insects are alike: | 1. have six legs 2. have three body parts 3. have an outer skeleton |
| 3 sections of an insect's body: | 1. head 2. thorax 3. abdomen |
| spiracles | tiny breathing holes along the sides of an inset's abdomen |
| metamophosis | the four stages of growth of most insects |
| four stages of metamophosis: | 1. egg 2. larva 3. pupa 4. adult |
| thorax | the middle part of an insect where wings and legs are attached and moved by muscles |
| abdomen | the end part of an insect which contains the insect's heart, stomach and spiracles |
| compound eye | an eye made of numerous lenses which work together as one eye |
| antennae | the feelers which are the main sense organs found on the head of an insect |
| mimicry | to look very much like something else, as when one harmless animal looks like a harmful one as a means of protection |
| spiderling | a young spider |
| ballooning | when a spiderling spins a silk thread to catch the wind to carry it away |
Created by:
timberswartz05
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