References in classic literature ?
I have, also, reason to believe that humble-bees are indispensable to the fertilisation of the heartsease (Viola tricolor), for other bees do not visit this flower.
We recommend the creation of an Ecological Fertilisation Mission in the coming budget," Greenpeace said in its submission to the ministry.
Doctors in the USA perform nearly 150 000 in vitro fertilisation treatments each year, but fewer than 1 in 3 results in a live birth.
In 2000, he came up with the novel idea of replacing the test tube used for in vitro fertilisation by a permeable capsule, inserted in the mother's uterus, so that gametes (spermatozoa, ovules) and/or embryos would develop under more natural conditions, in vivo.
Available from: Human Fertilisation and Embryology Authority London, UK E-mail: admin@hfea.
The team from the University of Birmingham found that Nifedipine puts a temporary halt on the chain of events leading to fertilisation.