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Arthropods
quiz
| Term | Definition |
|---|---|
| artho | joint |
| poda | foot |
| jointed appendages | all appendages are jointed |
| head | contains many sensory organs |
| thorax | contains many vital organs and appendages |
| abdomen | contains digestive and respiratory organs |
| exoskeleton | external shell made of a tough protein called chitin |
| ectothermic | get their heat/warmth from their environment |
| aquatic | less temperature change |
| terrestrial | temperature varies widely. |
| mandibles | jaws to cut/chew food |
| ventral nervous system | developed sense of smell and movement |
| simple eyes | single lens |
| compound eyes | multiple lenses |
| antennae | sense smell and touch |
| receptors | cells that sense the environment |
| open circulatory system | blood is not contained in vessels |
| strong muscular system | muscles attach to the inside of the exoskeleton |
| terrestrial organisms | book lungs and tracheal tubes |
| aquatic organisms | gills |
| internal fertilization | land |
| external fertilization | water |
| molting | shedding exoskeleton |
| fixed skeleton | doesn't grow as the animal gets bigger |
| hormones | chemicals that cause change in an organism |
| target cells | the only cells affected by a specific hormone |
| cephalothorax | Fused head and thorax |
| carapace | shell made of chitin |
| cheli | pinching |
| peds | feet |
| swimmerets | small appendages used to create current |
| compound eyes | detect light and movement, do not form images |
| gills | feathery appendages used only for breathing |
| digestive gland | secretes enzymes to digest food |
| sinus | empty cavity where blood pools |
| green gland | filters out nitrogen wastes |
| spinnerets | structures used to form webs |
| silk glands | make and store a liquid protein that solidifies when exposed to air |
| chelicera | fangs |
| simple eyes | sense light and movement, most do not form images well |
| spiracles | air holes that let air into the abdomen |
| Malpighian tubules | small tubes that filter out nitrogen wastes (ammonia) and recycle water |
| hunting spiders | use good eyesight and surprise attack (instead of webs) |
| web spiders | trap prey with a web (use vibrations of the web, not sight) |
| mites and ticks | parasites that suck fluids from the tissues of their host and transmit diseases |
Created by:
KiahnaL
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