Tissue and its function:
Tissue is a group of cells that work together to perform a specific function in an organism. It is the fundamental unit of structure and function in living organisms. There are four main types of tissues in animals: epithelial, connective, muscle, and nervous tissues. Each type of tissue has a specific function that contributes to the overall health and functioning of the organism.

Meristematic tissue:
Meristematic tissue is a type of plant tissue that consists of actively dividing cells. It is responsible for the growth and development of plants. Meristematic tissue is found in areas of the plant where growth occurs, such as the tips of roots and shoots. It gives rise to various types of specialized tissues in plants.

Function of meristematic tissue:
1. Cell division: Meristematic tissue is responsible for cell division in plants, which allows for growth and development.
2. Differentiation: Meristematic tissue gives rise to specialized cells that perform specific functions in the plant.
3. Growth: Meristematic tissue is crucial for the growth of plants, as it continuously produces new cells that contribute to the overall size of the plant.
4. Repair: Meristematic tissue plays a role in repairing damage to plant tissues, such as injuries or diseases.
In conclusion, meristematic tissue is essential for the growth and development of plants. It is responsible for cell division, differentiation, growth, and repair, making it a vital tissue in the life of a plant.