| Term | Definition |
|---|
| flatworm | phylum commonly called... |
| bilateral symmetry | phylum form of symmetry |
| acoelomates | phylum is pseudocoelomates, acoelomates, coelomates? |
| thin flat bodies | phylum body form |
| exchange O2 and CO2 directly with environment through diffusion | why does this phylum not need a circulatory or respiratory system? |
| 1 opening; 2 way track | describe phylum digestive track (openings; direction) |
| pharynx | muscular tube class turbellaria use to take in food |
| flame cells | collect excess water and then get rid of it through pores in the turbellarianbody |
| cerebral ganglia | why can turbellarians learn? |
| eyespots | detect changes in light for turbellarians |
| asexually by fission | how do turbellarians reproduce? |
| flukes | class trematoda commonly known as... |
| planarians | class turbellaria commonly known as... |
| tegument | a sheet of cells that covers the body and provides protection for trematodas |
| primary host | host that adult lives in (trematoda) |
| intermediate host | host that larvae line in (trematoda) |
| schistosomiasis | when eggs do not leave the body and block blood vessels and cause tissue decay |
| tapeworms | class cestoda commonly called... |
| scolex | cestoda's anterior end with hooks and suckers to attach to host |
| proglottids | body segments behind the scolex |
| nutrients from host's digestive track | cestoda feeds on... |
| detritus | turbellaria feeds on... |
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