Question

Which pair of scientists should Elizabeth write instead of X and Y?

Schwann and Hooke
Hooke and Schleiden
Hooke and Leeuwenhoek
Virchow and Schwann

Answer 1

Schleiden had even supposed the nucleus to be a constituent part of the wall, sometimes lying enclosed between two layers of its substance, and Schwann quoted this view with seeming approval. Schwann believed, however, that in the mature cell the nucleus ceased to be functional and disappeared.

Answer 2

The answer is Hooke And Leewenhoek

Step-by-step explanation:

Hooke was the first person to call use the name "cells". Leewenhoek called his cell the "animalcell" and he used his own microscopes.