Bt cotton contains a gene from Bacillus thuringiensis. What trait does this give the cotton?
Pest resistance
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25
How do reproductive isolation mechanisms contribute to biodiversity?
By allowing populations to diverge into distinct species
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10
What do you call the diagram that shows evolutionary relationships based on shared traits?
Phylogenetic tree
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10
. A flood drastically reduces the size of a small island population, changing allele frequencies. This situation BEST illustrates what mechanism of evolution?
Genetic drift
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10
When chromosomes exchange segments during meiosis, what mechanism of evolution does it suggest?