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