Question

Post embryonic growth is

• A. Accretionary
• B. Auxetic
• C. Multiplicative
• D. All of the above

Answer 1

The correct option is A Accretionary

Growth that results due to an increase in intercellular material is called as accretionary growth. Post embryonic growth is an example of accretionary growth. During post embryonic growth, all cells do not undergo cell division but at certain locations like bone marrow undifferentiated cells are present. These cells divide mitotically and replace the worn out differentiated cells. In auxetic growth, cell size increases rather than number of cells. Ascaris shows auxetic growth. Multiplicative growth is also called as embryonic growth. In this, growth occurs due to increase in the number of cells due to mitotic division. In this, the size of cells remain constant.

Thus, the correct answer is option A.