Scientists have been studying living things for over 400 years. At first, they made observations with their unaided eyes. Later, the
development of the microscope allowed scientists to see cells for the
fi rst time. Aft er observing many diff erent living things under the
microscope, scientists realized that all living things are made up of
cells. Th is conclusion led scientists to develop the
cell theory-an explanation that summarizes the basic characteristics of living things.
Th e cell theory states the following:
• All living things are composed of one or more cells.
• Th e cell is the basic unit of life.
• All cells come from pre-existing cells.
) Many different types of cells have organelles.
All parts of a plant are made of cells.
The microscope
microscope
According to the cell theory all living cells come from living cells by multiplying.The cell theory states that:All living things are made up of cells.Cells are the basic unit of living things.Cells are always produced from other cells.
The three listed points of the cell theory would be that cells are the building blocks of life, all life is composed of cells, and all cells come from preexisting cells. These were found by different people.
The cell theory is a fundamental concept of Biology that states that all living things are composed of cells; that cells are the basic units of structure and function in living things; and that new cells are produced from existing cells.
Cell Theory. It states that all new cells are created by old cells dividing into two.
If observations don't match the theory, then either the theory or the experiment is wrong. Maybe a measuring device isn't sensitive or accurate enough. If the experiment is right, but results doesn't match theory, then it's time to come up with a new theoru that matches the experiment's results.
Because it has been proven by many experiments by many scientists
because i dont know
Cell theory is one of many subdivisions of scientific theory. Therefore, since cell theory IS scientific theory, I don't see how you can compare them. This is like saying compare mammals to squirrels.
That statement is part of cell theory, which is summarized as follows:Living organisms are composed of one or more cells.Cells are the most basic unit of life.Cells come from other living cells which preceded them.
One observation of early scientists that supports the cell theory is that all cells divide which was observed in 1855. The other observation was that living things contain cells which was observed in 1839 by Theodor Schwann.
the Cell Theory
the Cell Theory
The first cell did not come from a preexisting cell and viruses
Cell Theory is credited to three scientists: Matthias Sclieden, a botanist; Theodore Schwann, a zoologist; and Rudolf Virchow. The three parts of cell theory are: 1. All living things are made up of cells. 2. All living cells come from pre-existing cells. 3. The cell is the basic unit of life.
According to the cell theory all living cells come from living cells by multiplying.The cell theory states that:All living things are made up of cells.Cells are the basic unit of living things.Cells are always produced from other cells.
Well I'll just use two points from the cell theory: 1) The cell is the basic unit of structure and function in all living things. In the late 1800s, a scientist named Schwann told the world that he observed cells in animals. A short time later, another scientist named Schleiden said the same for plants. This was a huge start to the cell theory. 2) All cells rise from pre-existing cells. It's hard to believe but at one point actual scientists believed that living things could come from inorganic matter. It was not until Louis Pasteur's experiment with the S-shaped flask, and the boiled water, that people started to shun the thought of spontaneous generation and look at this final addition to the cell theory.
Credit for developing cell theory is usually given to two scientists: Theodor Schwann and Matthias Jakob Schleiden. While Rudolf Virchow contributed to the theory, he is not as credited for his attributions toward it.