gills

Marine Biology Science 5 of 5 appearances
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"gills" appearances by year

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All Marine Biology clues by year

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# Clue Answer As Given Value Round Category Air Date Show
Most sharks have 5 of these openings on either side of their heads, but some species have 7 gills $200 J SHARK! 2023-07-18 #8917
Most sharks have 5 pairs of these--those with 7 are among the oldest shark species in existence gills $800 J SHARKS & JETS 2017-11-23 #7639
Almost all sharks have 5 of these "slits"; & some don't have to swim constantly to pump water over them gills $400 DJ SHARK! 2008-02-21 #5404
In these organs in most fish, water flows the opposite direction to the blood, increasing oxygen transfer gills $400 DJ MARINE BIOLOGY 2007-05-24 #5239
The chief respiratory organs of a fish the gills $200 J FISH 1987-09-21 #696
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