Schleiden and Schwann determined which of the following statements regarding the cell theory?
A. All cells come from existing cells.
B. All cells are microscopic in size.
C. The cell was discovered by Anton van Leeuwenhoek.
D. The cell is the basic unit of life in all living things.

c. The cell was discovered by Anton Van Leeuwenhoek

Explanation:

cells are made of every living thing but they were not discovered by Scleiden or Shwann

answer; ///(b) it is composed of four protein chains and four heme groups;

it's the cell cycle, but cytokines is when the cell divides.

theres 3 stages interphase,mitosis,and cytokines.

interphase prepares the cell for division.

mitosis is the process of dividing the cell,it has 4 parts interphase,anaphase,metaphase,and telophase.

lastly there's cytokines,that's when the cell divides into 2 daughter cells