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45 Cards in this Set
- Front
- Back
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the projections on a planarian which give the anterior end its triangular shape |
auricles |
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parasite known to cause schistosomiasis |
blood fluke |
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the concentration of sense organs and nervous system control at the anterior end of the body |
cephalization |
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anterior structure on a tapeworm; used for attachment |
scolex |
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individual segment of a tapeworm body; contains muscles, nerves, and sexual organs necessary to survive and reproduce |
proglottid |
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intermediate host of a blood fluke |
snail |
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flatworms structure used for excretion and osmoregulation |
protonephridia |
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term for an organism which is mature and pregnant or full of eggs |
gravid |
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substance secreted by a leech to prevent the host from feeling its presence |
anaesthetic |
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the blood vessel pumps blood anteriorly towards the head of an earthworm |
dorsal |
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process in which bacteria harvest energy from hydrogen sulfide and convert inorganic elements into sugars |
chemosynthesis |
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the lobe around a worms mouth |
peristomium |
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short stiff needlelike bristles which help anchor body segments during locomotion |
setae |
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type of contractions which allow a worm to burrow |
peristaltic |
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earthworm waste products which enrich soil |
castings |
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the study of insects |
entomology |
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the most life-threatening canine worms |
heartworms |
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number 1 disease vectors |
mosquitoes |
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the youngest segment in the body of an annelid is at this end of the body |
posterior |
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longer, leg-like paired bristles which aid aquatic forms in swimming |
parapodia |
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external circular tings marking each body segment of a segmented worm |
annuli |
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the fluid-filled coelom serves as this type of skeleton |
hydrostatic |
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a thick, muscular sac-like organ of the digestive system that grinds food into small pieces |
gizzard |
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a stretchy sac-like organ of the digestive system that holds materials temporarily |
crop |
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body system which uses hormones to regulate reproduction and regeneration |
endocrine system |
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the jaw of an arthropod |
mandible |
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the ability of an animal to avoid observation or detection by other animals |
crypsis |
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carried plague which at times in history killed significant portions of human populations |
fleas |
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the kind of flies that carry african sleeping sickness |
tsetse |
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“living fossils” |
horseshoe crab |
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a chronic, disabling disease caused by a bacterium and carried by the deer tick |
lyme disease |
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#2 disease vector |
ticks |
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“daddy longlegs” |
harvestmen |
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brown spiders that bear a violin-shaped dorsal stripe on their cephalothorax |
brown recluse |
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one of the most dangerous spiders to people; from australia |
funnelweb spider |
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metamorphosis stage before the pupa; is wingless and wormlike |
larva |
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venom that acts on the nervous system |
neurotoxin |
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the main part of the body of a tapeworm made up of smaller repeated units |
stobila |
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scientific name for eyespots which can detect light intensity |
ocelli |
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the muscular tube through which the flatworm can suck food into its gut |
pharynx |
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the most common parasitic worm infection in people worldwide; also known as “wandering worms” |
ascaris |
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intermediate hosts of a canine or feline heartworm |
mosquitoes |
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type of circulatory found in most annelids |
closed circulatory |
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simple eyes that can only detect light vs. dark |
ocelli |
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eyes that can have many individual lenses or facets which are good at detecting movement |
compound |
