Which tool is used to add a DNA sample to an agarose gel during gel electrophoresis? Group of answer choices

dropper

micropipette

serological pipette

spatula

graduated cylinder

Will mark brainliest!

What is the most important inorganic material for livings things? ! due tomorrow!

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do

The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the correspondingbones in whales have very different shapes and proportions. however, genetic data suggest that all three kindsof organisms diverged from a common ancestor at about the same time. which of the following is the mostlikely explanation for these data? a) humans and bats evolved by natural selection, and whales evolved by lamarckian mechanisms.b) forelimb evolution was adaptive in people and bats, but not in whales.c) natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.d) genes mutate faster in whales than in humans or bats.e) whales are not properly classified as mammals.