Q10. Horned lizards use ir horns to defend against predatory birds. A researcher

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Q10. Horned lizards use ir horns to defend against predatory birds. A researcher observed that lizards living in areas with predatory birds have longer uhei her hypothesize that horns protection against predation than led hoen in areas with no predatory birds. This observati short horns in each of locations: Desert shorter horns. To test this hypothesis, the researcher 20lizards with long horns and 20 lizards with to tagged v alley, where there are no pr datory birds, and Cactus Corner, are predatory birds. She returned every week for 12 weeks measure survival where there of tagged izards graphs below represent her findings. What can you conclude from the researcher's results? Desert Valley Cactus Corner Short horns O Longhorns 12 0 Weeks Weeks O The hypothesis that longer horns ofer greater protection against predation is supported The hypothesis that longer homs offer greater protection against predation is NOT supported The experiment is well designed but the results are inconclusive about the hypothesis The experiment is not well designed to test the hypothesis

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Q8. Not legible.

Q 9. Option B is the right answer. As the sources tells us that probably some chance mutation have resulted in the webbed feet which were then proved to be of much advantage for the ducks. Thus the frequency of this mutation grew in the population. Further extension of webbing in the feet was done by the process of natural selection.

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