I need answer of questions which is ticked if anyone will give 1st and 3rd correctly instead of all I will mark his/her answer as brainliest
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ANSWER: Tortoises can't be regarded as amphibians though it lives both in water and land because it does not have smooth skins and breathe with the help of lungs all time. EXPLANATION: As tortoises have hard and scaly skin, breathe through lungs throughout their life time and has hard shell coatings in its egg.
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Source :Google
3.
All vertebrates are chordates but all chordates are not vertebrates". ... The characteristic features of the phylum Chordata include the presence of a notochord and paired pharyngeal gill slits. In sub-phylum Vertebrata, the notochord present in embryos gets replaced by a cartilaginous or bony vertebral column in adults.
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