Answer:
Rudolf Virchow's most widely known scientific contribution is the cell theory, which built on the work of Theodor Schwann. He was one of the first to accept the work of Robert Remak, who showed the origins of cells was the division of pre-existing cells.
Explanation:
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Answer:
the answer is B = all living things are made of the same elements
Have very few or no predators in the new ecosystem.
A true-breeding<span> organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits (i.e. physically expressed traits) to its offspring.</span>
