A child is a back -bencher and is unable to watch the black-board clearly, therefore he stands, see and sit repeatedly. It disturbs the nearby classmates, what inference will you draw with reference to the student's difficulty?

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#Question id: 12024

#7. System Physiology – Animal

Constipation can result from the consumption of a substance that ________.

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#Question id: 5028

#11. Evolution and Behavior

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

1. tetrapods

2. vertebrates

3. deuterostomes

4. amniotes

5. bilaterians

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#Question id: 23145

#13. Methods in Biology

A chemical is said to be fluorescent if it absorbs light at one wavelength (excitation) and emits light (fluoresces) at a specific 

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#Question id: 23392

#Aptitude

QP O, SRQ, U T S, W V U, .....

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#Question id: 9237

#9. Diversity of Life Forms

Which of the following factors causes extremely high levels of toxic chemicals in fish-eating birds?