A student wants to observe the movements of a microscopic aquatic creature. Which of the following pieces of laboratory equipment would most likely NOT be used? O Coverslip
O Microscope
O Scalpel
O Eye dropper

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?