Bacteria and Archaea are placed in separate kindoms because -. A. all bacteria are heterotrophs and all archaea are autotrophs.
B. bacteria are prokaryotes and archaea are eukaryotes.
C. their cell structure and chemical make-up are very different.

What must happen before a body cell can begin mitotic cell division

How do scientists think that gravity affected the formation of our solar system?

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.