Freckles are a dominant trait in humans. Both of the girls have the genotype FF for freckles. If either one marries a man with no freckles, what are the chances that their children will have frecklesp

You see a white marker with an orange circle and black lettering. what does this marker tell you

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1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?