Farmers have bred Holstein-Friesian cattle so that they give more milk than older cattle breeds. Which process was used to create these cattle?
- Aadaptation
- Bgenetic engineering
- Cnatural selection
- Dselective breeding
Biology 0610 · IGCSE · Selection
Farmers have bred Holstein-Friesian cattle so that they give more milk than older cattle breeds. Which process was used to create these cattle?