what are the three main points cell theory?
54635
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
734646
All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types.
966498
The cell theory, which is one of the fundamental tenets of biology, states that all living things are composed of cells and that cells are the basic units of life.
95180
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory. ... All organisms are made up of one or more cells.
159874
The cell theory states that all living things are composed of cells. It also says that cells are the basic units of structure and function in living things and new cells come from existing cells.
62225
Correct answer: C). All living organisms are composed of one or more cells, which came from pre-existing cells. It is an example of cell theory. The cell theory in a biology is a theory which is given after conclusion and observation of many scientists and is universally accepted a theory.
291478
['Reproduction. Must be able to reproduce. ... ', 'Cells. Made up of cells. ... ', 'Energy. Must be able to maintain and produce energy. ... ', 'Response to the environment. Respond to their environment. ... ', 'Homeostasis. Must be able to maintain Homeostasis. ... ', 'Development and Growth. ... ', 'Change over time (evolution) ... ', 'Chemicals of Life.']
369275
['Responsiveness (excitability). Responsiveness is a property of all living cells, but muscle and nerve cells have developed this property to the highest degree. ... ', 'Conductivity. ... ', 'Contractility. ... ', 'Extensibility. ... ', 'Elasticity.']
1106044
['Eukaryotic Cells. Very complex.', 'Organelles. Little organs.', 'Two major parts of a eukaryotic cell. (1) Nucleus. ... ', 'Cytoplasm. The region of the cell between the cell membrane and the nucleus.', 'Nuclear Envelope. Layer of two membranes that surrounds the nucleus of a cell.', 'Chromatin. ... ', 'Chromosomes. ... ', 'Nucleolus.']
358393
['It responds to the environment.', 'It grows and develops.', 'It produces offspring.', 'It maintains homeostasis.', 'It has complex chemistry.', 'It consists of cells.']
170076
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
541075
['One. Cells are the basic structure and function of a living thing.', 'Two. All organisms are made out of cells.', 'Three. Only existing cells can make new cells.']
985605
['All living organisms are composed of one or more cells.', 'The cell is the basic unit of structure and organization in organisms.', 'Cells arise from pre-existing cells.']
985748
The three main parts are: 1) All living things are made of cells and their products, 2) New cells are created by old cells dividing into two, and 3) Cells are the basic building units of life. In 1665, Robert Hooke observed, with the aid of a crude compound microsope, the structure of a thin slice of cork.
782714
['The cell is the smallest entity that still retains the characteristics of life.', 'All cells have three basic parts: ... ', 'Eukaryotic cells are defined by their possession of a membrane-bound nucleus.', 'Prokaryotic cells have no defined nucleus; the only representatives are bacteria.']
407080
['cell membrane.', 'cytoplasm.', 'nucleus.', 'mitochondria.']
235006
Cellular division has three main functions: (1) the reproduction of an entire unicellular organism, (2) the growth and repair of tissues in multicellular animals, and (3) the formation of gametes (eggs and sperm) for sexual reproduction in multicellular animals.