NEET · Biology · STD 12 - 8. microbes in human welfare

A biocontrol agent to be a part of an integrated pest management should be

A Species-specific and symbiotic
B Free living and broad spectrum
C Narrow spectrum and symbiotic
D Species-specific and inactive on non-target organisms

Verified Solution

Answer & Solution

Correct Answer

(D) Species-specific and inactive on non-target organisms

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.

Same subject

Match List \(I\) with List \(II\) :

List \(I\)	List \(I\)
\(A\) \(P\) wave	\(I\) Heart muscles are electrically silent.
\(B\) \(QRS\) complex	\(II\) Depolarisation of ventricles.
\(C\) \(T\) wave	\(III\) Depolarisation of atria.
\(D\) \(T-P\) gap	\(IV\) Repolarisation of ventricles.

Choose the correct answer from the options given below :

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