2006-08-30 10:33:44 · 6 answers · asked by Anonymous in Health ➔ Other - Health
because this is how our species procreates
2006-08-30 10:37:12 · answer #1 · answered by arianna3at 3 · 0⤊ 0⤋
The purpose of sexual reproduction is variation.
Asexual reproduction through "budding" or "division" produces another individual of identical genetic makeup, effectivly a younger clone.
A population of individuals made up of identical genetic information is very vulnerable to change and disease, since they all have identical systems.
When you have sexual reproduction you have more natural variation. For every "advantage" an organism has their is usually a "cost". If a plant is naturally pest resistant, the plant has to use resources to produce the toxin that discourages the bug.
Within a population of plants some will produce more toxin, and some will produce less. This variation increases the chance that if the enviroment changes that some of the offspring will survive.
If there is a heavy rainy season and many more insects are around, the plants with greater toxin levels may be the only ones to survive.
If there is a drought, and almost no insects are around, the plants that have not invested many resources in toxin production have used their resources towards growth and now may out compete their "brothers" for water and soil nutrients. The plants with low levels of toxins may be the only ones to survive.
If there was no variation all the plants would invest equally in toxin. All would be eually suseptable to insects etc.
2006-08-30 17:49:13 · answer #2 · answered by Crystal Violet 6 · 1⤊ 0⤋
Can you think of a better way? I can't.
All life evolves by "learning" to like the things that insure their continued existence.That's why you get hungry and eating is so pleasurable.It's also why we have pain.It teaches us that certain things are bad for us.
With the exception of single celled organisms,mating is the only thing that produces future generations.If it didn't feel so damn good we probably wouldn't be so inclined to "do it".
2006-08-30 17:41:49 · answer #3 · answered by Danny 5 · 0⤊ 0⤋
Because that's the way The Man designed it.
2006-08-30 17:38:19 · answer #4 · answered by kj 7 · 0⤊ 1⤋
sperm fertilizes the egg. goes through the ovarian tube and out comes your child.
2006-08-30 17:38:20 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Cause it is so good!! I couldn't think of a better way to do it.
2006-08-30 18:29:01 · answer #6 · answered by drubaby32698 3 · 0⤊ 1⤋