It is the cell theory
it is a summary of scientific observations and conclusions about cells
A group of similar cells that work together to do one job.
Cell Theory
AnswerCell theory. .
AnswerCell theory. .
AnswerCell theory. .
A generalization is started from a group of observations. It's when specific observations reach a general conclusion, when the conclusion is made, then it is a generalization of all other things. Ex. "All things are made from cells" This is a generalization called the cell theory. People observed many things made from cells, inferred that it was true, and then made more observations to confirm it. The funny thing is I went on google to answer this question for my homework, I just answered it myself. Odd how you get such instant answers by using a search engine ... hint: that's what they're for!
Theodor Schwann made his observations on animal cells and formulated the cell theory in the 1830s. He concluded that all animals are made up of cells, laying the foundation for the modern understanding of cell biology.
Summary of nucleolus
It took several decades for the scientific community to fully accept the existence of cells after their discovery in the mid-17th century. Early microscopists like Robert Hooke and Antonie van Leeuwenhoek provided crucial observations that eventually led to the widespread recognition of cells as the fundamental unit of life.
Cell theory states that all living organisms are composed of one or more cells, cells are the basic unit of structure and function in an organism, and all cells come from pre-existing cells through cell division. This theory is supported by multiple lines of evidence from observations made using microscopes and other scientific tools.
His conclusion was that all animals have cells.