1
There is also a substantial body of evidence that male sperm counts decline with age.
2
If no children are desired, the meeting of the male sperm and the ovum must be prevented.
3
The male sperm is conducted into this cavity from the testicle (t) by a special duct (vd).
4
When it reaches the womb the ovule is ready for the process of conception-thatis, fertilization by the male sperm.
5
The active elements of the male sperm, the cone-shaped spermatozoa, are similar to those of most other animals (cf.
6
In the Radio Times interview he says that "the modern male sperm count is half what our grandfathers' was".
7
The male sperm-cells in the testicles must undergo similar changes in view of the coming impregnation as the ova in the female ovary.
8
But only half the male sperm have this type-inthe other half is found one of somewhat different type, known as "Y."
9
The female, whether bird or beast, forms a true egg which must be fertilized by the male sperm cell before the offspring can develop.
10
Clouds of male sperm need to find the gills of ripe females, and as overfishing thinned the chances of fertilisation, wild populations began to collapse.
11
A MALE sperm whale was dying on a Co Waterford beach last night after it stranded in distress earlier yesterday.