Question
साइक्लोस्टोमों में श्वसन
Answer :
Word Count : 324
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साइक्लोस्टोम जैसे लैम्प्रे और हैगफिश में श्वसन की प्रक्रिया सरल किंतु विशिष्ट होती है। इनमें वास्तविक जबड़े नहीं होते और शरीर लंबा, ईल के समान होता है। श्वसन मुख्यतः गिल्स द्वारा होता है, जो शरीर के पार्श्व भागों में स्थित गिल पाउचों के रूप में पाए जाते हैं। सामान्यतः 6 से 15 जोड़े गिल पाउच होते हैं, जो प्रजाति के अनुसार भिन्न हो सकते हैं। प्रत्येक गिल पाउच बाहर की ओर एक स्वतंत्र गिल छिद्र द्वारा खुलता है, जिससे जल का
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