Which type of organism donot contain tissue?
Answers
Answered by
2
Explanation:
As very simple animals, the organisms in group Parazoa (“beside animal”) do not contain true specialized tissues. Although they do possess specialized cells that perform different functions, those cells are not organized into tissues.
Answered by
1
Tissue
Living organisms that are found in the world are classified into unicellular and multicellular organisms. So, if you see unicellular organisms like Amoeba, Paramecium, diatoms, bacteria, etc. have only one cell. They do not have tissue level of organization. Even in some lower order animals, tissue differentiation is absent.
This means that cells form groups. But they do not perform a definite function. But if you see multicellular higher order animals like humans, dogs, etc. different groups of cells perform different specific functions.
If a cell is called the basic unit of life, then a group of cells together make up the tissues. These groups of cells have a common origin with a similar structure. And the groups of cellsperform a definite function. So, in simple terms, tissues can be defined as a group of cells performing similar functions.
Tissues represent a level of organization in living organisms. Both plants and animals have tissues. But the kinds of tissues that are present in both the living organisms are different. If you see in animals, groups of muscle cells together form the muscle tissue. Similarly, groups of plant cells form the plant tissue.
Living organisms that are found in the world are classified into unicellular and multicellular organisms. So, if you see unicellular organisms like Amoeba, Paramecium, diatoms, bacteria, etc. have only one cell. They do not have tissue level of organization. Even in some lower order animals, tissue differentiation is absent.
This means that cells form groups. But they do not perform a definite function. But if you see multicellular higher order animals like humans, dogs, etc. different groups of cells perform different specific functions.
If a cell is called the basic unit of life, then a group of cells together make up the tissues. These groups of cells have a common origin with a similar structure. And the groups of cellsperform a definite function. So, in simple terms, tissues can be defined as a group of cells performing similar functions.
Tissues represent a level of organization in living organisms. Both plants and animals have tissues. But the kinds of tissues that are present in both the living organisms are different. If you see in animals, groups of muscle cells together form the muscle tissue. Similarly, groups of plant cells form the plant tissue.
Attachments:
Similar questions