Question:
Consider the following statements:
Statement I: In human beings, trachea and oesophagus open into the larynx.
Statement II: Human dentition is pleurodont and polyphyodont type.
Consider the following statements:
Statement I: In human beings, trachea and oesophagus open into the larynx.
Statement II: Human dentition is pleurodont and polyphyodont type.
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Human dentition is heterodont, thecodont and diphyodont. The pharynx is the common passage for food and air.
Updated On: Jun 12, 2026
- Both statement I and statement II are true
- Both statement I and statement II are false
- Statement I is true, but statement II is false
- Statement I is false, but statement II is true
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
The human digestive and respiratory systems possess specialized structures that maintain separate pathways for food and air. Human dentition also has characteristic features.
Step 1: Analyze Statement I. The trachea begins from the larynx. However, the oesophagus does not open into the larynx. Both trachea and oesophagus open into the pharynx, which acts as a common passage for food and air. Therefore Statement I is false.
Step 2: Analyze Statement II. Human dentition is:
• Thecodont (teeth embedded in sockets)
• Diphyodont (two sets of teeth during life)
• Heterodont (different types of teeth) Humans are neither pleurodont nor polyphyodont. Therefore Statement II is false.
Step 3: Final conclusion. Both statements are incorrect. \[ \boxed{\text{Both statements are false}} \] Hence option (B) is correct.
Step 1: Analyze Statement I. The trachea begins from the larynx. However, the oesophagus does not open into the larynx. Both trachea and oesophagus open into the pharynx, which acts as a common passage for food and air. Therefore Statement I is false.
Step 2: Analyze Statement II. Human dentition is:
• Thecodont (teeth embedded in sockets)
• Diphyodont (two sets of teeth during life)
• Heterodont (different types of teeth) Humans are neither pleurodont nor polyphyodont. Therefore Statement II is false.
Step 3: Final conclusion. Both statements are incorrect. \[ \boxed{\text{Both statements are false}} \] Hence option (B) is correct.
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