Development Questions in English

(C) Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called $Plasticity$.
For example,heterophylly in cotton,coriander,and larkspur is a classic example of plasticity where leaves of the juvenile plant are different in shape from those in mature plants.
$Redifferentiation$ is the process where dedifferentiated cells lose the ability to divide and mature to perform specific functions.
$Differentiation$ is the process by which meristematic cells undergo structural changes to become mature cells.
$Development$ is a term that includes all changes that an organism goes through during its life cycle from germination of the seed to senescence.

(B) Development in plants is a complex process that encompasses all the changes that an organism goes through during its life cycle, from germination of the seed to senescence.
Biologically, development is defined as the sum of two fundamental processes: $Growth$ and $Differentiation$.
$Growth$ refers to an irreversible permanent increase in size, while $Differentiation$ refers to the maturation of cells to perform specific functions.
Therefore, the correct option is $B$.

(D) Plants follow different pathways in response to the environment or phases of life to form different kinds of structures. This ability is called $Plasticity$.
For example,heterophylly in cotton,coriander,and larkspur,where the leaves of the juvenile plant are different in shape from those in mature plants.
This phenomenon allows plants to adapt to changing environmental conditions.

(C) Senescence is the final stage of development in plants,characterized by the gradual deterioration of functional and structural integrity.
It involves a series of physiological and biochemical changes that eventually lead to the programmed cell death $(PCD)$ of plant cells,tissues,or organs.
Therefore,senescence in plants leads to the death of cells.

(D) Plants follow different pathways in response to the environment or phases of life to form different kinds of structures. This ability is called plasticity.
Heterophylly,which is the development of different leaf forms in response to environmental changes like moisture or light intensity in aquatic and terrestrial plants (e.g.,buttercup),is a classic example of plasticity in plants.
Therefore,option $(4)$ is correct.