cells in a multicellular organism have the ability to specialize in certain functions for the overall success of the organism. some genes will be expressed in some cells while other genes in other cells. this creates the difference between skin cells versus liver or blood cells. a unicellular organism must cover all the functions of an entire organism and all the necessary genes must be expressed plus all the functions of created and breaking down compounds necessary for growth, development and producing offspring.
Cell division in single celled organisms is called amitosis. In multicellular organisms it is performed by mitosis and meiosis. So that's pretty much the answer.
In mitosis, unicellular organisms are self sufficient. It does not need the help of other organisms. For multicellular organisms, it divides labor among tissues, organs, and organ systems.
dickman
1. Development from a fertilised cell ie Reproduction 2. Growth 3. Repair and replacement of worn out tissue
In unicellular organisms, reproduction occurs by the division of the entire cell. The modes of reproduction in unicellular organisms can be fission, budding, etc. whereas in multicellular organisms, specialised reproductive organs are present. Therefore, they can reproduce by complex reproductive methods such as vegetative propagation, spore formation, etc. In more complex multicellular organisms such as human beings and plants, the mode of reproduction is sexual reproduction.
Binary Fission Binary Fission
In multicellular organisms, cell might have seperate jobs or tasks.In a unicellular organisms,the only cell present will have to complete all tasks necessary for survival.With multicelled organisms ,it allows for certain cells to specialize in their function and divide the labour between multiple different cell groups.
Cell division is called mitosis. It occurs in eukaryotes, or multicellular organisms. It has different stages to ensure that it gets done correctly.
REPAIR
Organ Systems Apply Differently To The Bodies Of Multicellular organisms
Multicellular organisms grow through cell division. A multicellular organism's growth and development start with one cell, which then divides into two cells. The division will continue, with each division increasing by a factor of two.
Growth or Injury.
A multicellular organism usually lives longer than a one cell organism. A one celled organism is limited to the life span of it's one cell. Different tissues in a multicellular organism perform different functions and new cells and tissues are added in these organisms by cell division hence life span in multicellular organisms is longer than unicellular organisms.
Multicellular organisms grow through cell division. A multicellular organism's growth and development start with one cell, which then divides into two cells. The division will continue, with each division increasing by a factor of two.
1. Development from a fertilised cell ie Reproduction 2. Growth 3. Repair and replacement of worn out tissue
cell specialization
Cell Divisioncell reproduction & cell divisionCell division is the process in which it has as a role in the growth and repair of tissue in multicellular
before cell division happens after the old tissues have to be renewed or repaired.
In unicellular organisms, reproduction occurs by the division of the entire cell. The modes of reproduction in unicellular organisms can be fission, budding, etc. whereas in multicellular organisms, specialised reproductive organs are present. Therefore, they can reproduce by complex reproductive methods such as vegetative propagation, spore formation, etc. In more complex multicellular organisms such as human beings and plants, the mode of reproduction is sexual reproduction.