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Question #47458

Difficulty: 8/10 | 🟢 Free

The Question

Paul Ehrlich’s 'Rivet Popper Hypothesis' illustrates how the loss of critical species (rivets on the wings) disproportionately compromises ecosystem stability. If this analogy is applied to the internal 'ecosystem' of a mammalian brain, the congenital absence of which structure would most directly represent the loss of a 'wing rivet' by abolishing the interhemispheric communication essential for cross-modal sensory integration?

Options

  • A.

    Corpora quadrigemina

  • B.

    Corpus callosum

  • C.

    Thalamus

  • D.

    Association areas

Check Your Answer

Correct Answer

Step-by-Step Solution

Explanation

How the Examiner Thinks

Evolutionary_Exception

Tackle problems where standard rules evolve or change based on specific environmental constraints.

Concepts Behind This Question

Keystone_Species|Ecosystem_Stability|Corpus Callosum Functionality

Why This Question Is Tricky

Common Mistakes

Conceptual Pivot: Bridging macro-ecology (Rivet Popper Hypothesis) with neuroanatomy.

The student must identify the specific anatomical structure responsible for interhemispheric integration (corpus callosum) and recognize its role as a critical 'biological service' provider for mammalian survival.

The primary trap is 'Association areas', which handle intersensory associations but are not the physical interhemispheric bridge.

Quick Facts About This Question

Question Information

SubjectBiology
ChapterNeural Control and Coordination - Class 11
ConceptCorpus Callosum Functionality
Difficulty8
Cognitive Load5
Target Solve Time120 sec
AccessFree