because all animals are diffirent.maybe becausa some are in water and some are in land.
It is due to variation .
That is such a broad question.... Obviously there are many different insects/animals that have their own way of having sex and creating babies.....
multiply, times, square, increase, growth, development, reproduction, duplication, proliferation, exponentiation
Among some animal species, new-borns and adults are highly similar in morphology and ecology -- that is: they look and feed similarly. These are said to have a direct development.Some other animals go through different stages in their life. Best-known examples are toads (which are born as tadpoles) and butterflies (which are born caterpillars). Their development is indirect.The distinction is not black and white: there is a continuum between animals which go through radically different stages and others which are born adult.
With asexual reproduction, the DNA creates a total copy, unique in no way whatsoever. However, with sexual reproduction, though the process is not as quick in most cases, there is a certain level of unique traits which allow the offspring to either spread into different areas, as most plants do, or become a better or worse version of the combination of its two parent genes. Also, in most animals and humans, sexual reproduction is rather pleasurable.
It's the way peeple and animals mate and that's how we reproduce to make knew offspring
There are different animals on earth because they are made to do different things on the earth,that is also the way God made them.
Animals undergo sexual reproduction, whereas protists have asexual reproduction. Animals are also multi-cellular organisms, protists can be single celled. Some protists are multi-cellular, but they lack specialized tissue (another characteristic often seen in animals).Protists are sometimes called (incorrectly) as "unicellular animals".they are different because one is microscopic and one is not
no. they are way different animals.
in what way are fertilization and reproduction opposites?
well basically, only monkeys have a penis so they can only make monkey babies the simple way. all other animals have to do it like this...the male animal has to spit in the female animals vagina. this is a true fact.
Reproduction is an organism's way of creating a new generation of its species. Reproduction is essential for preserving a species (carrying on with the species), and replenishing the number of organisms in it to compensate for dead organisms. Without reproduction, a species would die out in one generation.