In biology, cell theory is a scientific theory which describes the properties of cells.
These cells are the basic unit of structure in all organisms and also
the basic unit of reproduction. With continual improvements made to microscopes
over time, magnification technology advanced enough to discover cells
in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology.
Over a century later, many debates about cells began amongst
scientists. Most of these debates involved the nature of cellular
regeneration, and the idea of cells as a fundamental unit of life. Cell
theory was eventually formulated in 1839. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow
contributed to the theory. Cell theory has become the foundation of
biology and is the most widely accepted explanation of the function of
cells.
The three tenets to the cell theory are as described below:
<span><span>All living organisms are composed of one or more cells. (However,
this is considered a controversy because non-cellular life such as
viruses are disputed as a life form. See Non-cellular life.)</span>The cell is the basic unit of structure and organization in organisms.<span>Cells arise from pre-existing cells.</span></span>
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Answer:
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. Most eukaryotic chromosomes include packaging proteins called histones which, aided by chaperone proteins, bind to and condense the DNA molecule to maintain its integrity
Answer:
individual feeding relationships between organisms.
Explanation:
When we try to explain the abundance accumulated by each link in the food chain, it can be observed that both the magnitude of individuals and biomass decrease rapidly from plants to predators. By sorting the information in this way, we get a graph in the form of a "pyramid".