union of gametes (sex cells) produced by different individuals, either plants or animals
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
Sponsor: Buy Frontline Top Spot Flea & Tick Preventative for Dogs online at lowest price with free shipping on every order. Shop Now to get Free Doses for all packs from Small Dogs to Extra Large Dogs.