2007-03-13 23:33:16 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
Insecta as a class are moderately low down on the food chain. The fill many niches, like flies cleaning up the scraps, dung beatles eating dung of the grass eaters and bees pollinating flowers. Each has evolved to fill that niche.
Consider that at insect level, there are millions of ways to make a living. Eating grass, leaves, other insects, wood, flowers and the list goes on. Every time a new way to eat something is found, the insects always find a way to evolve to fill that new food group. Considering that there are insects that paratise other animals, the insects are extremely adaptive.
There is a lot of ways for insects to get food to reproduce. Natural selection has allowed the insect to evolve to fill this multitude of food sources.
2007-03-14 23:43:18 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Your question is a philosophical one - there are different numbers of species in each class - it is not a scientific question to ask why the numbers are different - apart from the observation that they must have characteristics which suit them very well for a wide variety of environments (speaking at a class level).
2007-03-14 00:24:33 · answer #2 · answered by SteveK 5 · 1⤊ 0⤋
because there are more species of insects than another other class. Here is a fact. The weight of insects on this planet weigh more than all other life put together. However there are more bacteria in number than insects
2007-03-13 23:38:13 · answer #3 · answered by beano007 2 · 0⤊ 0⤋