In multiple sclerosis, the myelin sheaths around the axons of the brain and spinal cord are damaged and demyelination results. How does this disease manifest at the level of the action potential?

 I) Action potentials move in the opposite direction on the axon.

 II) Action potentials move more slowly along the axon.

 III) No action potentials are transmitted.

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#Question id: 12346

#Unit 10. Ecological Principles

The schematic below shows the relationship between survivorship with age (relative to maximum lifespan) in Species 1 (dashed line) and Species 2 (solid line). Which of the following inferences is compatible with this figure?

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#Question id: 23910

#General Aptitude

The presence of pneumatophores is seen in:

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#Question id: 16475

#Unit 12. Applied Biology

Cultures that facilitate cell-to-cell interactions and signaling among cells and allow their study, are

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#Question id: 5303

#Unit 11. Evolution and Behavior

Which of the following statements defines proteomics?

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#Question id: 10239

#Unit 10. Ecological Principles

Two species of barnacle, balanus balanoides and Chthamalus stellatus, occur in the intertidal regions of Scotland. As following

 Which of the following statements is correct?