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Name: ______________________________ Date: _____________________ Notes: Natural Selection and Adaptation What process allows organisms with the best adaptions to reproduce and pass on their genes? ______________________________________________________________________________ What is true of environmental resources? ___________________________________________ Organisms that can acquire resources the best are most likely to do what two things? ______________________________________________________________________________ What makes an organism well adapted? _____________________________________________ ______________________________________________________________________________ What do we call the different versions of a gene? _____________________________________ What process creates new alleles? _________________________________________________ Mutations are only passed to offspring when they occur where? _________________________ What does it mean for the frequency of an allele to increase in a population? ______________________________________________________________________________ What does natural selection change? _______________________________________________ What must a population do when it is faced with new conditions? ________________________ What happens to species that cannot adapt? _________________________________________ What allele was produced in peppered moths due to mutations? _________________________ At first, what happened to the black moths? _________________________________________ At first, which allele was the most beneficial? _________________________________________ What did the Industrial Revolution send into the environment? __________________________ After pollution killed the lichens, what allele was more beneficial? ________________________ How did the frequency of the black allele change over time? ____________________________ Did this change individual moths or the moth population? ______________________________ What makes a population more likely to adapt? _______________________________________ What happens to an insect population when it is treated with a pesticide? ______________________________________________________________________________ What do the alleles for resistance let insects do? ______________________________________ Over time, the _______________________ of this allele __________________________. Do individuals change, or does the population change? _________________________________ What does it mean for a population to become resistant to a chemical? ______________________________________________________________________________ What can bacteria become resistant to? _____________________________________________
