First invertebrates insects fossil appeared in which of the following geological ages?

a) Mesozoic b) Jurassic

c) Paleozoic d) Devonian

e) Permian f) Pennsylvanian

Which of the following combinations give the best answer?

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#Question id: 10389

#6. System Physiology – Plant

The amount of light absorb by the plant per square meter (µmol m–2) known as

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#Question id: 8923

#9. Diversity of Life Forms

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?

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#Question id: 23307

#Aptitude

If you give the student physical punishment upto his nervous breakdown, what will you do?

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#Question id: 19891

#12. Applied Biology

Which one of the following sensors uses light?

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#Question id: 5760

#8. Inheritance Biology

The fluctuation test of Luria and Delbruck (studying resistance to bacteriophge T1 infection) established that