Ivack 7th Cells-Section 1

Matthias Schleifen studied _______

Theodor Schwann studied ________

Rudolf Virchow said that all cells come from existing ______

Anton van Leeuwenhoek observed little animals called _________ under a microscope

Robert ______ was the first person to describe cells

a phospholipid layer that covers a cell and acts as a barrier

a small part of a cell that has a special job

an organelle that contains DNA

single celled organisms without a nucleus

prokaryotes that love extreme conditions

the smallest cells known that live everywhere

organisms made up of cells that have a nucleus

all cells have a cell membrane and cytoplasm and ______

_______ means "many cells"