Question

What is the critical difference between gemmulation and fragmentation?

Answer 1

Answer: Option D

Explanation:

The gemmulation can be defined as the aggregation of the cells mostly archeocytes when reserve food granules are isolated in a surface of sponge and it is surrounded a protective covering.

The Fragmentation can be defined as a process by which the  asexual reproduction in the multi cellular organism takes place. The fragments of the organism takes place and each fragment grows to form a new individual whose genetic combination is same like its parent.

Hence, the correct option is D

Answer 2

Answer:

d. Gemmulation involves providing a resistant layer of cells for a capsule; fragmentation is merely breaking off chunks of tissue to grow a new organism

Explanation:

Gemmulation and fragmentation are both a type of asexual reproduction. Gemmulation starts when mass of cell which is produced asexually that are capable of producing a new organism.  

These mass of cells gets surrounded by a protective covering which provide a resistant layer of cell and the structure is called gemmule.

In fragmentation, the parent body part breaks from the whole body and gives rise to a new organism. For example in planaria. So the correct answer is d.