Select the correct statement.

Assertion : In the condition of obstructive jaundice,large amounts of unabsorbed fats are eliminated out of the body.
Reason : Entry of bile into the small intestine is prevented during obstructive jaundice.

Some animals eat their feces to digest the cellulose contents again; such animals are known as:

Choose the correct option:
$(1)$ The calorific value of fat is higher than that of glucose.
$(2)$ Premolars are absent in the dental formula of a human child.

Go through the following statements regarding starch digestion. Separate true and false statements and select the correct option accordingly.
$I.$ Digestion of starch starts from the mouth.
$II.$ Around $30 \%$ of the starch is digested in the stomach.
$III.$ Digestion of food requires the action of pancreatic juices.
$IV.$ Digestion of food is completed in the longest part of the alimentary canal.

Correct the following statements by deleting one of the incorrect entries:
$(a)$ Goblet cells located in the intestinal mucosal epithelium secrete mucus/chymotrypsin.
$(b)$ Fats are broken down into di- and monoglycerides with the help of amylase/lipase.
$(c)$ Gastric glands of stomach mucosa have oxyntic cells/chief cells which secrete $HCl$.
$(d)$ Saliva contains enzymes that digest starch/protein.