One reason is that the life cycle of most insects is very short. There may be 1-15 generations in a year (As opposed to 1 every 14-20ish years in humans). Another reason is many insects have hundreds to thousands of offspring every reproductive cycle. Let's assume we're talking about an insect with 10 generations per year, that they exist in a 1:1 male to female ratio (which is common in insects), that each mating pair can produce 1,000 eggs and that we start with 1 mating pair.
At generation 1, we have 1 mating pair. These 2 insects make 1000 babies.
At Generation 2 we have 500 mating pairs (1000/2 because of 1:1 ratio). These 500 mating pairs make 500x1000 (500,000) babies.
At Generation 3, which isn't even 6 months into the first year, we have 250,000 mating pairs that have 250000x1000 babies. Since each egg may contain mutations, you can see why insect populations can evolve quickly.
The main reason is that spiders and several other little animals such as scorpions split of from the main evolutionary branch going one way, and insects split off from the main branch going another way, and that happened a very long time ago. The related reason is that the physical structures of spiders and insects are the same in that they do not have bones inside their legs and other body parts (so they have exoskeletons and are arthopods), but other than that almost everything about them is different.
Actually aphids give birth to live young!
No,not all insects can fly.Some are the ladybugs,butterflies,dragonfly,e.g.Female ants do not fly,but male ants do fly.
butterfly mate and lay eggs, The next spring. caterpillars hatch and begin their lives to become butterflysss,
Animals that hatch from eggs include birds, reptiles (such as snakes and turtles), amphibians (such as frogs and salamanders), and some fish and invertebrates (such as insects and spiders). Mammals, however, give birth to live offspring.
Insects do not give birth but only lay eggs
The animals in the world must adapt to their rapidly changing surroundings.
give reasons why blendig is done
give me the answer please
Well when insects give birth they give birth to hundreds of offspring unlike humans
how do poikilotherms adapt to change in the environment tempertures
no insects lay eggs they cant get brith
Becaus they give birth
give me the answer please
In carnivorous plants, the "mouths" eat insects to give the plant its necessary nitrogen.
I applied to university to study insectology as I have a keen interest in insects.
They give birth to a baby sheep called a lamb.