Most animals that live in deep oceanic waters are

A tertiary consumers
B detritivores
C primary consumers
D secondary consumers.

Verified Solution

Answer & Solution

Correct Answer

(B) detritivores

Step-by-step Solution

Detailed explanation

(b) :Benthos is the community of organisms which live on, in, or near the sea bed, also known as the benthic zone. As no light is available at this zone of sea, the energy source for deep benthic ecosystems is often organic matter from higher up in the water column which drifts down to the depths. This dead and decaying matter sustains the benthic organisms, and therefore, most organisms in benthic zone \(i.e.\), in deep oceanic waters, are scavengers or detritivores.

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 the following columns and select the correct option.

Column \(- I\)	Column \(- II\)
\((a)\) Eosinophils	\((i)\) Immune response
\((b)\) Basophils	\((ii)\) Phagocytosis
\((c)\) Neutrophils	\((iii)\) Release histaminase, destructive enzymes
\((d)\) Lymphocytes	\((iv)\) Release granules containing histamine

\((a)\quad(b)\quad(c)\quad(d)\)

NEET 2020 Easy

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From NEET

Match the coordination number and type of hybridisation with distribution of hybrid orbitals in space based on Valence bond theory.

Coordination number and type of hybridisation	Distribution of hybrid orbitals In space
\((a)\) \(4, sp ^{3}\)	\((i)\) trigonal bipyramidal
\((b)\) \(4, dsp ^{2}\)	\((ii)\) octahedral
\((c)\) \(5, sp ^{3} d\)	\((iii)\) tetrahedral
\((d)\) \(6, d ^{2} sp ^{3}\)	\((iv)\) square planar

Select the correct option

NEET 2020 Medium

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 :

NEET 2024 Medium

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