Both animals and plants grow. Why do we say that growth and differentiation in plants is open and not so in animals? Does this statement hold true for sponges also?

(N/A)

Growth in Plants	Growth in Animals
$1$. Plant growth is indeterminate,meaning cells can divide and enlarge continuously throughout their lifetime.	$1$. Animal growth is determinate,meaning they grow until a finite period,mature,and then stop growing.
$2$. Growth is open due to the presence of meristematic cells that keep dividing,allowing for the continuous addition of new organs.	$2$. Cell division is distributed throughout the body to replace old and damaged cells,rather than being localized at specific regions.
$3$. Structures at the tips or meristematic zones are never 'complete' because of open-ended apices.	$3$. After a specific embryonic period,the growth rate reduces in the juvenile phase and ceases upon reaching maturity.

Regarding sponges: The statement does not hold true for sponges. Sponges are simple multicellular animals that lack true tissues and organs. They exhibit a high degree of plasticity and regenerative capacity,and their growth pattern does not follow the typical determinate growth seen in higher animals.