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How did cell specialization occur in multicellular organisms?
Prioktan918
Specialization occurred during the process that moved from unicellular organisms to multicellular organisms. Selection pressures favored having numerous distinct cells that work in tandem over individual cells that did not and then further cells that were in complete union with each other over those that work in tandem. There are a number of intermediate steps between unicellular and multicellular organisms. Probably the most clear "midway" point is the colonial organism of which the extant Volvox is one of the best examples. (Admittedly Volvox itself is only 200 million years to present old, so it is not a remnant of this transition, but is similar to what scientists surmise was part of the transition that led to the development of multicellular organisms.) In a colonial organism, numerous unicellular organisms work in tandem to achieve goals (similar to how geese fly in flocks even though each is autonomous). The required communication would select cells that more effectively communicate with each other, leading to cells that can function as part of the same organism. In Volvox, we also already see small degrees of specialization. There are distinct somatic cells which perform day to day activities such as motion and photosynthesis and germ cells which are primarily responsible for replication. Since no cell could adequately perform both functions well, this partial specialization is favored. In organisms performing more complex tasks, this differentiation in tasks would naturally be selected for enlargement. You can read more about it in the Royal Society report below.
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Multicellular organisms exhibit a division of labor among cells known as?
cell specialization
How do multicellular organisms begin?
multicellular organisms begin as a single cell.
Multicellular organisms are?
Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms.
What type of cell are all multicellular organisms made of?
Multicellular organisms are made up of Eukaryotic cells.
Is a fox multicellular or unicellular?
The Bengal fox, like all other mammals, is a multicellular organism. Multicellular organisms are all organisms with more than one cell. Unicellular organisms are also called single cell organisms.
Multicellular organisms exhibit a division of labor among cells known as?
cell specialization
Why do multicellular organisms need specialized tissues?
Cell specialization is necessary to support multicellular life because multicellular organisms need different tissues. This means it needs cells to make up those tissues and perform different functions.
What is cell differentiation and cell specialization?
Cell differentiation is when a less specialized cell changes into a more specialized cell. In multicellular organisms there are many specialized cells who get their jobs through cell specialization. Cell specialization changes a specialized cell into whatever type of cell the organism needs at the moment.
Why is the tissue specialization an advantage to multicellular organisms?
Tissue specialization has an advantage for multicellular organisms because it can make organs or organ systems. Have cells that can specialize means the cells can cooperate to form these organs.
Which term describes a process that takes place only in multicellular organisms and where cells have different and specialized functions?
cell specialization
Which term describes a process that takes place only in multicellular organisms and wher cells have different and specialized functions?
Cell specialization or cell differentiation.
What is two reasons for cell reproduction in multicellular organisms?
In single-cell organisms it is reproduction by the means of binary fission,where one cell becomes two separate cells. In multi-cellular organisms ( fungi,plants,animals ),it is all about growing
How do multicellular organisms begin?
multicellular organisms begin as a single cell.
In what kinds of organisms is the cell specialization a characteristic?
Either multicellular or unicellular organisms. By the way are you using Prentice Hall Biology California because many of your questions are from the book? prentice hall florida actually
How would you distinguish a large colonial organism from a multicellular organisms?
Multicellular organisms are organisms with more than one cell, the cells of which are usually specialized. A large colonial organism is an organism of many cells that are loosely attached to each other and that show little or no specialization among themselves. Multicellular organisms are capable of surviving on their own while colonial organisms are not.
What system of specialization in a multicellular organism such as human with a bacteria cell?
The difference between a multicellular organisms like humans and unicellular ones like bacteria is that the specialization of cells inÊmulticellular organisms have the ability to perform different functions. ÊSome examples of cells that performÊdifferent function are nerve cells, blood cells and muscle cells.Ê
Do some colonies of multicellular organisms have specialized cells?
Multicellular organisms, of course! Unicellular organisms have one cell, so no cellular specialization.
