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Select the incorrect statements :- (a)...

Select the incorrect statements `:-`
(a) alimentary canal begins with an anterior cavity called buccal cavity.
(b) tooth is embeedded in a socket of mandible bone only.
(c ) human shows strict diphyodont type of dentition
(d) oesophagus and the trachea open into the pharynx.

A

a,b,c &d

B

a,b,& c

C

a,c,&d

D

a,b &d

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question of selecting the incorrect statements, we will analyze each statement one by one. ### Step-by-step Solution: 1. **Statement (a): Alimentary canal begins with an anterior cavity called buccal cavity.** - The alimentary canal does indeed begin with the mouth, which includes the buccal cavity. Therefore, this statement is **correct**. 2. **Statement (b): Tooth is embedded in a socket of mandible bone only.** - Teeth are embedded in the sockets of both the mandible (lower jaw) and the maxilla (upper jaw). Thus, this statement is **incorrect**. 3. **Statement (c): Human shows strict diphyodont type of dentition.** - Humans have two sets of teeth: primary (milk) teeth and permanent teeth. This classification is known as diphyodont dentition. Therefore, this statement is **correct**. 4. **Statement (d): Oesophagus and the trachea open into the pharynx.** - The pharynx is a common passage for both food and air. The esophagus (which carries food) and the trachea (which carries air) do open into the pharynx. However, they do not open into the pharynx directly; instead, they branch off from it. This statement is **incorrect**. ### Summary of Incorrect Statements: - The incorrect statements are **(b)** and **(d)**. ### Final Answer: The incorrect statements are (b) and (d). ---
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