Answer:
Explanation:crystal size in igneous rocks is determined by how quickly magma or lava cooled to form it.
Because any other substance couldn't carry the heat and the amount of surface area gives it more of an opportunity to cool down
Answer:
tropical, temperate, and polar
Answer:
The majority of mutations are neutral in their effects on the organisms in which they occur. Beneficial mutations may become more common through natural selection. Harmful mutations may cause genetic disorders or cancer.
Explanation:
Answer:
By doing more research.
Explanation:
The cell theory change with the passage of time by doing more research about the cell. The final modification of the cell theory done by Rudolf Virchow in 1855 on the basis of his new research and findings about the cells. With the passage of time, modification occurs in microscope which enable the scientists to find different parts, organelles and features of cell on the basis of which scientists modify cell theory with the passage of time.