Francisco wrote these notes on one of the scientists who contributed to cell theory: 1838
Studied plants
Used a microscope
Concluded that plants are made of cells

This is an edgunity thing my son needs help on.

Matthias Jakob Schleiden.

Explanation:

The cell theory is one of the fundamental findings in the field of biology, which establishes that all plants and animals, as well as their organs, however varied, are always made up of cells. This theory led to far-reaching conclusions: growth is a process in which more and more cells are formed, which are always formed from cells; forming cells also a fundamental role in reproduction: new individuals always emerge from living cells through cell division. The cell theory was first formulated for plants in 1838 by Matthias Schleiden.

heat released by collision processes during accretion, and heat from decay of radioactive elements

explanation: