An organ is a collection of two or more types of tissues that work together to perform a specific function in the body. Organs are part of organ systems that coordinate various functions to maintain homeostasis in the body.
A group of cells is called tissue. Tissue is a collection of similar cells that work together to perform a specific function in the body.
tissue
A collection of cells that function together makes up a tissue. A collection of tissues that function together makes an organ.
Tissue, organ or system. Depends on what you mean by "a collection" of cells.
Simply put, a group of cells in the human body working together to perform a specific function is called an organ (eg, brain, heart, lungs). There are also "systems" of cells in the body that are not necessarily grouped together in a certain physical location, yet they also work together and communicate with each in order to maintain certain physiologic functions (such as the immune system). Outside of humans there are various and sundry collections of cells grouped together in order to survive or perform a function, symbiotic or otherwise (such as bacterial biofilms, which are like coral reefs of bacteria). But I would go with organ as the answer.
A group of cells is called tissue. Tissue is a collection of similar cells that work together to perform a specific function in the body.
tissue
tissue
A collection of cells that function together makes up a tissue. A collection of tissues that function together makes an organ.
A tissue is a collection of similar cells in an organism's body used to perform a specific function.
Tissue, organ or system. Depends on what you mean by "a collection" of cells.
Tissue. Tissue is a group of similar cells that work together to perform a specific function in an organism.
Simply put, a group of cells in the human body working together to perform a specific function is called an organ (eg, brain, heart, lungs). There are also "systems" of cells in the body that are not necessarily grouped together in a certain physical location, yet they also work together and communicate with each in order to maintain certain physiologic functions (such as the immune system). Outside of humans there are various and sundry collections of cells grouped together in order to survive or perform a function, symbiotic or otherwise (such as bacterial biofilms, which are like coral reefs of bacteria). But I would go with organ as the answer.
Tissue. A tissue is a group of cells that work together to perform a specific function in the body. Examples of tissues include muscle tissue, nerve tissue, and connective tissue.
A tissue is a number of cells that work together and have the same function(s).
tissue
An organ.