Which among the following is incorrect about cellular level of organiz...
The incorrect statement among the options given is option 'D', which states that Hydra exhibits the cellular level of organization. This is incorrect because Hydra actually exhibits tissue level of organization.
Explanation:
Cellular level of organization is the simplest and most basic level of organization in living organisms. It is characterized by the presence of individual cells that perform specific functions. In this level of organization, cells are the basic units of structure and function.
a) A group of cells combine to form the whole body:
In multicellular organisms, cells combine to form tissues, which further combine to form organs, and organs work together to form systems. Finally, all the systems together make up the whole body. So, this statement is correct.
b) Each cell carries over a specific function:
Each cell in a multicellular organism is specialized to perform specific functions. For example, muscle cells are specialized for contraction, nerve cells are specialized for transmitting electrical signals, and red blood cells are specialized for carrying oxygen. So, this statement is correct.
c) This level of organization is also called the cell aggregate of the body plan:
The cellular level of organization is also referred to as the cell aggregate of the body plan because it is the basic building block of the body. It is the first level of organization that forms the foundation for higher levels of organization. So, this statement is correct.
d) Hydra exhibits this level of organization:
This statement is incorrect because Hydra actually exhibits tissue level of organization. Hydra is a simple multicellular organism belonging to the phylum Cnidaria. It is composed of different types of tissues organized in a specific manner. Tissues in Hydra include epithelial tissue, nerve tissue, and muscle tissue. Therefore, Hydra does not exhibit the cellular level of organization.
In conclusion, the incorrect statement is option 'D' because Hydra exhibits tissue level of organization, not the cellular level.
Which among the following is incorrect about cellular level of organiz...
In cellular level of organization, a group of cells combine to form the whole body. Each cell carries over a specific function. This level of organization is also called as cell aggregate of body plan. Sponges exhibit this level of organization. Hydra exhibits tissue level of organization.
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