Answer:
<h3>Theodor Schwann said all animals were made of cells. </h3>
Explanation:
<h3>I hope l helped ❤❤❤</h3>
An investigation is to search something up to look for the facts an demonstration is showing a reason of proof for something
The puzzle shapes also helped them understand his theory, so did tectonic plates, I gave you all I know! I wish I could help more but I haven’t learned this stuff in years! I’m sorry! Anyways hope you find out!
<span>Laws and model making are </span><span>two types of scientific knowledge can be expressed as a mathematical equations</span>