All evolutionary changes that allow a species to change in response to te enviroment are. originally a result of

A60-tooth gear is connected to a 72-tooth gear.if the smaller gear turns 12 times,how many turns does the larger gear make?

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?

Identify the fungus type pictured below. the image shows a mushroom used often in cooking, will gills underneath its cap.