how can twins be born?

Answer 1

The sperm does not split.

When the sperm enters the egg/ovum, it forms a zygote. The zygote then splits along its way from the oviduct (passage from the egg-producing place) to the womb. the split zygote implants itself on the walls of the womb, forming twins

Answer 2

Not quite sure what you are asking here. Twins are normally born with one coming first (usually the larger one) and the other following soon after. There are serious complications that can arise if both attempt to enter the birth canal at the same time. This is one of the reasons that multiple births are often dealt with by C-section.

Answer 3

Fraternal twins (commonly known as "non-identical twins") usually occur when two fertilized eggs are implanted in the uterine wall at the same time.

Identical twins occur when a single egg is fertilized to form one zygote (monozygotic) which then divides into two separate embryos. The two embryos develop into fetuses sharing the same womb.

Some monozygotic twins are known as "mirror twins" or mirror image twins. These are identical twins with opposite features, that is, one may be right-handed and the other may be left-handed; hair will whorl in the opposite direction, and so on. Mirror twinning is comparatively rare in humans.

Answer 4

When either 2 eggs are fertilized at once, or one fertilized egg splits into 2. I've got non-identical twins, I had 2 eggs fertilized together.

Answer 5

one at a time

Answer 6

The same way a single birth is - it just takes a little longer

Answer 7

now can be born by cesarean up to 3 months apart.

Answer 8

How old are you? Think you need to pay more attention in science or sex ed.

Answer 9

Vaginally, c-section.

Answer 10

its called genetics! something to do with the seperation of the womeans egg, i think.or she produces too many?!!!