Question

this venn diagram compares schleiden and schwann. where would this phrase belong on the diagram? studied animals. in both x and y in z in x in y. schleiden x 1838 studied cells used a microscope schwann y 1839

Explanation:

Schleiden studied plant - cells in 1838. Schwann studied animal - cells in 1839. The statement "Studied animals" pertains only to Schwann. In the Venn - diagram, Y represents Schwann's unique contributions.

Answer:

In Y