Question

Which one of the following organisms does not reproduce by fission?

• A. Planaria
• B. Plasmodium
• C. Amoeba
• D. Paramecium

Answer 1

The correct option is A Planaria

Plasmodium divides by multiple fission while Amoeba and Paramecium divide by binary fission.
Planaria reproduces by fragmentation i.e., it splits and produces many fragments. Fragmentation in multicellular organisms is a form of asexual reproduction or cloning in which an organism is split into fragments. Each of these fragments develops into mature, fully grown individuals that are clones of the original organism.
So, the correct answer is option A.