Ruminants have a large sac-like structure called __________ between the oesophagus and the small intestine.

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Solution

Ruminants have a large sac-like structure called rumen between the oesophagus and the small intestine. Ruminants eat grass. The grass is rich in cellulose. Many animals, including humans, cannot digest cellulose. The cellulose of the food is digested in the rumen by the action of certain bacteria that are not present in humans.

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The sac like structure present in ruminants in between the small intestine and large intestine is called

Question 4
Which is the correct sequence of parts in a human alimentary canal?

(a) $M o u t h \to s t o m a c h \to s m a l l i n t e s t i n e \to o e s o p h a g u s \to l a r g e i n t e s t i n e$
(b) $M o u t h \to o e s o p h a g u s \to s t o m a c h \to l a r g e i n t e s t i n e \to s m a l l i n t e s t i n e$
(c) $M o u t h \to s t o m a c h \to o e s o p h a g u s \to s m a l l i n t e s t i n e \to l a r g e i n t e s t i n e$
(d) $M o u t h \to o e s o p h a g u s \to s t o m a c h \to s m a l l i n t e s t i n e \to l a r g e i n t e s t i n e$

Q. The oesophagus is a muscular tube which opens into a spacious sac known as small intestine.

Which of the following is the correct sequence of parts as they occur in the human alimentary canal ?

(a) Mouth $\to$ Stomach $\to$ Small intestine $\to$ Oesophagus $\to$ Large intestine
(b) Mouth $\to$ Oesophagus $\to$ Stomach $\to$ Large intestine $\to$ Small intestine
(c) Mouth $\to$ Stomach $\to$ Oesophagus $\to$ Small intestine $\to$ Large intestine
(d) Mouth $\to$ Oesophagus $\to$ Stomach $\to$ Small intestine $\to$ Large intestine

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