Question

How do algae differ in terms of size?

Answer 1

Algae and plants are similar in that they can produce their own food from nutrients and sunlight by photosynthesis. The main difference between the two is in their complexity. Algae are simple organisms, sometimes unicellular, and even the largest types are relatively simple in structure......

Answer 2

it keeps growing in size when favourable conditions are available. this happens because of fragmentation process