NEET · Biology · STD 11 - 7. Structural organisation in animal

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth

A Pharynx \(\rightarrow\) Oesophagus \(\rightarrow\) Crop \(\rightarrow\) Gizzard \(\rightarrow\) Ileum \(\rightarrow\) Colon \(\rightarrow\) Rectum
B Pharynx \(\rightarrow\) Oesophagus \(\rightarrow\) Gizzard \(\rightarrow\) Crop \(\rightarrow\) Ileum \(\rightarrow\) Colon \(\rightarrow\) Rectum
C Pharynx \(\rightarrow\) Oesophagus \(\rightarrow\) Gizzard \(\rightarrow\) lleum \(\rightarrow\) Crop \(\rightarrow\) Colon \(\rightarrow\) Rectum
D Pharynx \(\rightarrow\) Oesophagus \(\rightarrow\) lleum \(\rightarrow\) Crop \(\rightarrow\) Gizzard \(\rightarrow\) Colon \(\rightarrow\) Rectum

Verified Solution

Answer & Solution

Correct Answer

(A) Pharynx \(\rightarrow\) Oesophagus \(\rightarrow\) Crop \(\rightarrow\) Gizzard \(\rightarrow\) Ileum \(\rightarrow\) Colon \(\rightarrow\) Rectum

Step-by-step Solution

Detailed explanation

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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Match List-\(I\) with List-\(II\).

List-\(I\) (Material)	List-\(II\) (Susceptibility \((x)\)
\(A\). Diamagnetic	\(I\). \(\chi=0\)
\(B\). Ferromagnetic	\(II\). \( 0>\chi \geq-1\)
\(C\). Paramagnetic	\(II\)I. \( x>1\)
\(D\). Non-magnetic	\(IV\). \(0<\gamma<\varepsilon\) (a small positive number)

Choose the correct answer from the options given below

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