Who developed the first known system for classifying living things

Witch type of microscope is used to view very small cell components like proteins and dna?

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

Explain how the political influence of african americans leaders became weaker.