Question

Read the following statements and find out the incorrect statements. a. The alimentary canal begins with an anterior opening—the mouth, and it opens out posteriorly through the anus.
b. The mouth leads to the buccal cavity or oral cavity. The oral cavity has a number of teeth, a muscular tongue and three pairs of salivary glands.
c. The first set of teeth is called temporary milk or adult teeth which are replaced by a set of permanent or deciduous teeth.
d. The upper surface of the tongue has small projections called taste buds.

• A. $a$ and $b$
• B. $b$ and $c$
• C. $c$ and $d$
• D. $b, c$ and $d$

Answer 1

Answer: (C)

$b$. The mouth leads to the buccal cavity or oral cavity. The oral cavity has a number of teeth and a muscular tongue.
$c$. The first set of teeth is called temporary milk or deciduous teeth which are replaced by a set of permanent or adult teeth.
$d$. The upper surface of the tongue has small projections called papillae, some of which bear taste buds.