How does chromatography relate to gel electrophoresis

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness