Obesity is a disorder involving excessive body fat that increases the risk of health problems.
(Obesity often results from taking in more calories than are burned by exercise and normal daily activities.)
Answer:In Spirogyra, the sexual reproduction involves a cycle alternation between a haploid vegetative filament (gametophyte plant) and a diploid zygospore, towards the end of growing season the Spirogyra filament produce aplanogametes in vegetative cells called gametangia The gametes fuse to form a zygospore (2n).
Explanation: