英:[gɪl slit]
美:[ɡɪl slɪt]
英:[gɪl slit]
美:[ɡɪl slɪt]
鳃裂
noun
any of the openings or clefts between the gill arches in vertebrates that breathe by gills through which water taken in at the mouth passes to the exterior and so bathes the gills
any of the rudimentary grooves in the neck region of the embryos of air-breathing vertebrates that correspond to the gill slits
the external opening to the cavity containing the gills when a protective covering of the gills is present
noun
any of the openings or clefts between the gill arches in vertebrates that breathe by gills through which water taken in at the mouth passes to the exterior and so bathes the gills
any of the rudimentary grooves in the neck region of the embryos of air-breathing vertebrates that correspond to the gill slits
the external opening to the cavity containing the gills when a protective covering of the gills is present
鳃裂
又称 :鳃裂(branchial cleft)
The first known use of gill slit was in 1854
gift cardnoun
a card that is worth a certain amount of money and that is given to someone to buy something (as goods or services from a business)
gift cardnoun
a card that is worth a certain amount of money and that is given to someone to buy something (as goods or services from a business)
gild1 of 2verb
to cover with or as if with a coating of gold
gild2 of 2
gild1 of 2verb
to cover with or as if with a coating of gold
gild2 of 2
gill archnoun
one of the several bars of bone or cartilage that occur in pairs with one of each pair on each side of the throat and that support the gills of fishes and amphibians
one of the undeveloped ridges that occur in the embryos of all higher vertebrates and correspond to the gill arches of fishes and amphibians
gill archnoun
one of the several bars of bone or cartilage that occur in pairs with one of each pair on each side of the throat and that support the gills of fishes and amphibians
one of the undeveloped ridges that occur in the embryos of all higher vertebrates and correspond to the gill arches of fishes and amphibians
gill rakernoun
any of the bony spines on the gill arch of a fish that prevent solid particles from entering the gills
gill slitnoun
any of the openings which occur in vertebrates with gills and through which water taken in at the mouth moves to the outside bathing the gills
an undeveloped gill slit that occurs at some time in the development of the embryos of air-breathing vertebrates
gill slitnoun
one of the openings or clefts between the gill arches in vertebrates that breathe by gills through which water taken in at the mouth passes to the exterior and bathes the gillsalso: branchial cleft
1 The German Darwinist Ernst Haeckel had speculated that while in utero human embryos pass through every stage of evolutionary history, developing first what look like gill slits and tails, which disappear in time.
2 Also like other pygmy seahorses, the African species has only one gill slit on its upper back, instead of two below each side of the head, like larger seahorses—another mystery.
3 But to breathe, most pull oxygen-containing water into their mouths and pump it through their gill chambers before expelling it out of their gill slits.
4 Adults have lungs, But a gill slit persists from the larval stage side Behind the head.
成体用肺呼吸, 但在头后两侧仍保存幼体阶段的鳃裂.