Which of the following combinations differentiates a bony fish from a cartilaginous fish? I. Presence of gills II. Absence of gill slits III. Possession of bony skeleton IV. Possession of laterally compressed body V. Possession of dorso-ventrally compressed body
I, II and III
I, III and IV
II, III and IV
II, III and V
Explanation
Video Explanation
No video available
Post your Contribution
Discussions (25)
My school the best option to this question is C because
In Chondrichthyes or Cartilegenous fish
(1) Each gill has its own opening ( presence of gill slit)
(2) The skeleton is cartilegenous
(3) The bidy is Dorso- ventrally compresed eg shark 
(4) The scale is Placoid tooth like structure
(5) Fins are fleshy
(6) Mouth is not extrusible
In Osteichthyes or bony fish
(1) The gill is covered with a bony plate opercular ( Absence of gill slit)
(2) Skeleton is bony
(3) Fins are supported by a bony or soft rays
(4) Mouth is extrusible
(5) Body is laterally compressed
(6) Scales are either Cycloid or Ctenoid
C is very correct 
๐ด๐ฌ๐ซ๐ฐ๐ช๐จ๐ณ ๐จ๐บ๐ท๐ฐ๐น๐จ๐ต๐ป๐บ ๐ฉ๐น๐จ๐ฐ๐ต๐บ๐ป๐ถ๐น๐ด๐ฐ๐ต๐ฎ ๐ฎ๐น๐ถ๐ผ๐ท
Please change this answer it is wrong the most correct answer is C please review
