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The symbiotic theory suggests that eukaryotes evolved from prokaryotes incorporating another prokaryotes from its' surroundings. The problem is that they would usually ingest another procaryote to eat it, however, in some cases the prokaryotes may not have been digested and their by-products could be used by the host prokaryote. That explains how you get such mutualisms as lichens which is is not a single organism but a relationship whereby a fungus and algae live together, in this case it is more like the fungus enslaving the algae. After generations of the two organisms living together symbiotically, their DNA may become integrated so that the host organism actually synthesis' the other prokaryote itself rather than having to be in contact with one to ingest it and form the mutualism. It occurs because both the prokaryotes (or sometimes just one) benefits from the relationship and so it is evolutionarily advantageous to reproduce in the presence of the other prokaryotes so they can grow up and integrate together. It takes a very long time before their DNA will integrate though.
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Describe the historical scientific contributions that lead to the development of the Cell Theory?
i like pizza
What is the endosymbiotic hypothesis of the origin of the eukaryotic cell?
The theory is that the original Eukaryotic cell came about by the consumption of a Prokaryotic cell by another Prokayotic cell. This smaller cell was incorporated into the processes of the other - thus forming a symbiosis. This theory is supported by the fact that chloroplasts and mitochondria have their own DNA (separate from the nucleus).
Pre-eukaryotic cells did not contain?
Chloroplasts and mitochondria according to the endosymbiotic theory.
Describe how the development of the cell theory shows that scientific beliefs can over time use specific examples.?
THEY ALL HAVE so they can change over time
What is the Symbiotic Theory?
The Symbiotic Theory..... It was founded in the 1960s but not made official until 1985. Ancestors of eukaryotic cells are symbiotic consortiums of prokaryote cells.
Describe margulis' theory about the evolution of protists?
Margulis hypothesized that the first Eukaryota evolved from a symbiosis of several cells.
Describe the historical scientific contributions that lead to the development of the Cell Theory?
i like pizza
Procedure adopted under the scientific method in development under the economic theory?
Describe the procedure adopted under the scientific method in the development of economic theories
Theory of endosymbiosis?
The endosymbiotic theory explains the origin of chloropasts and mitochondia. Symbiosis is the mutual benefit of two organisms living together. This was the basis of the theory.
What is the theory that says prokaryotic parasites once lived in eukaryotic cells?
This is the endosymbiotic theory.
What is the endosymbiotic hypothesis of the origin of the eukaryotic cell?
The theory is that the original Eukaryotic cell came about by the consumption of a Prokaryotic cell by another Prokayotic cell. This smaller cell was incorporated into the processes of the other - thus forming a symbiosis. This theory is supported by the fact that chloroplasts and mitochondria have their own DNA (separate from the nucleus).
Where are chloroplasts believed to have come from?
There is a theory that chloroplasts and mitochondrias were once a free living bacteria that came inside a eukaryotic cell and started a mutual relationship with the eukaryotic cell. The bacteria got to have a shelter, and in return, the eukaryotic is able to create more energy by mitochondrias, or be able to convert from co2 to o2. It is only a theory though.
Maslow's theory of sequential development of needs?
Maslow's theory posits that individuals have a hierarchy of needs, from basic physiological needs like food and shelter to higher-level needs like love and self-actualization. The theory suggests that individuals must fulfill lower-level needs before progressing to higher-level ones. Once lower-level needs are met, individuals can focus on achieving personal growth and self-actualization.
Why is the symbiotic cell theory important?
Symbiosis is the close association between individuals of different species, occurring within a whole community. It is the interactions of different species and it is important to maintain a healthy ecosystem.
How does the symbiosis theory prove to have DNA inside the mitochondria?
Mitochondria--small organelles found in eukaryotic cells that produce ATP--are believed to have become part of the eukaryotic cell by a process of symbiosis. This theory is supported by the fact that mitochondria have their own DNA, separate and distinct from that of the cell in which they reside. Even more compelling is the fact that mtDNA is found in the same form as DNA in prokaryotes such as bacteria. DNA in eukaryotes (animals, plants, fungi) comes in the form of long strings. It has two distinct ends and eukaryotes usually have several of these strings (chromosomes). DNA in prokaryotes, on the other hand, comes in a circular form. It is referred to as ccc-DNA, or covalently closed circular DNA. Prokaryotes typically only have one circular chromosome. The DNA found in mitochondria is ccc-DNA, rather than the eukaryotic type. This, and the fact that it is distinct from the DNA of the cell in which it is found, both suggest that mitochondria were once unique organisms that merged with other organisms via symbiosis to become one type of cell.
What theory proposes that eukaryotic cells arose from living communities of several prokaryotic organisms?
Endosymbiotic Theory
What was use in the development of evolutionary theory?
What type of reasoning was used in the development of evolutionary theory
