McMaster Bio 1M03: Exam 2024 Questions with all the correct answers;(Real actual exam) Graded A+
Provide examples where evolution is not goal-directed - - Parasites lose complex digestive systems - Finch beaks get larger, then smaller Although N enhances productivity, is too much nitrogen a bad thing? - N runoff can lead to eutrophication, species diversity decreases if organisms thrive in N, N pollution creates acid rain, climate change, depletion of ozone Are non-human animals capable of making decisions that impact their fitness? - No. Cost-benefit analysis is innate Are self-sacrificing alleles possible? - No. They do not produce offspring → low fitness Selfish alleles produce offspring → increase in frequency Are species dishonest? - Deceit mutualism → deceit pollination Dishonest signals → interspecific or intraspecific
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