Question

Note on class_amphibia

Points wise

Answer 1

"CLASS-AMPHIBIA"

=> amphibians can live in aquatic as well as terrestrial habitats

€ most of them have two pairs of limbs ,body is divisible into head & trunk

€ the amphibian skin is moist (without scale )

€ a tympanum represents the ear

€ alimentary canal , urinary tract & reproductive tract opens into a common chamber called as the cloaca

€ respiration is by gills , lungs and through skin

€ the heart is 3 chambered

€ they are cold blooded animals

€ sexes are seperate and fertilization is external

Answer 2

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✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✭✮
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▶ᴀᴍᴘʜɪʙɪᴀɴs ʜᴀᴠᴇ ᴛʜᴇ ғᴏʟʟᴏᴡɪɴɢ ᴄʜᴀʀᴀᴄᴛᴇʀɪsᴛɪᴄs:-

[1] ᴛʜᴇsᴇ ᴀʀᴇ ᴛʜᴇ ғɪʀsᴛ ᴠᴇʀᴛᴇʙʀᴀᴛᴇs ᴛʜᴀᴛ ᴄᴏᴜʟᴅ ʟᴇᴀᴅ ᴀ ᴛᴇʀʀᴇsᴛʀɪᴀʟ ᴇxɪsᴛᴇɴᴄᴇ.

[2] ᴛʜᴇʏ ᴀʀᴇ ᴄᴏʟᴅ ʙʟᴏᴏᴅᴇᴅ ᴀɴɪᴍᴀʟs ᴛʜᴀᴛ ʟɪᴠᴇs ᴏɴ ʟᴀɴᴅ ᴀɴᴅ ᴡᴀᴛᴇʀ.

[3] ʙᴏᴅʏ ɪs ᴅɪғғᴇʀᴇɴᴛɪᴀᴛᴇᴅ ɪɴᴛᴏ ʜᴇᴀᴅ ᴛʀᴜɴᴋ ᴀɴᴅ ᴛᴀɪʟ.

[4] ʙᴏᴅʏ ʜᴀs ᴛᴡᴏ ᴘᴀɪʀs ᴏғ ʟɪᴍʙs.

[5] ʜᴇᴀʀᴛ ɪs ᴛʜʀᴇᴇ ᴄʜᴀᴍʙᴇʀᴇᴅ ᴡɪᴛʜ ᴛᴡᴏ ᴀᴜʀɪᴄʟᴇs ᴀɴᴅ ᴏɴᴇ ᴠᴇɴᴛʀɪᴄʟᴇs.

[6] sᴋɪɴ ɪs ᴍᴏɪsᴛ ᴀɴᴅ ᴡɪᴛʜᴏᴜᴛ sᴄᴀʟᴇs.

[7] ᴛʜᴇʏ ʟᴀʏ ᴇɢɢs.

[8] ᴛʜᴇʏ ᴜɴᴅᴇʀɢᴏ ʜɪʙᴇʀɴᴀᴛɪᴏɴ ᴛᴏ ᴘʀᴏᴛᴇᴄᴛ ᴛʜᴇᴍsᴇʟᴠᴇs ᴅᴜʀɪɴɢ ᴜɴғᴀᴠᴏᴜʀᴀʙʟᴇ ᴘᴇʀɪᴏᴅ.

[9] ғᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ ɪs ᴇxᴛᴇʀɴᴀʟ ᴀɴᴅ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ɪɴᴄʟᴜᴅᴇs ᴀ ʟᴀʀᴠᴀʟ sᴛᴀɢᴇ.

[10] ʀᴇsᴘɪʀᴀᴛᴏʀʏ ᴏʀɢᴀɴs ɪs ɢɪʟʟs, ʟᴜɴɢs & sᴋɪɴ.