Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it?

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#Question id: 14694

#Unit 13. Methods in Biology

Two balls are to be drawn from a bag containing 5 red and 7 white balls. Find the chance that they will both be white

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#Question id: 28265

#Unit 5. Developmental Biology

 Resact is a___ 

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#Question id: 4996

#Unit 11. Evolution and Behavior

An explanation for the evolution of insect wings suggests that wings began as lateral extensions of the body that were used as heat dissipaters for thermoregulation. When they had become sufficiently large, these extensions became useful for gliding through the air, and selection later refined them as flight-producing wings. If this hypothesis is correct, insect wings could best be described as

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#Question id: 29074

#Unit 10. Ecological Principles

Given below is a matrix of possible interactions beneficial. (+), harmful (-), Neutral (0) between species 1 and 2. The names of interactions, A, B, C, D and E respectively;

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#Question id: 3542

#Unit 8. Inheritance Biology

All genes are not linked. The probability of a progeny being AaBBccDd from a corss between AABbccDd and aaBBccDD parents will be