What process has been used for centuries by farmers to produce the breeds that most suit their needs? a. creating mutations b. genetic engineering c. selective breeding d. gene therapy

Selective breeding has been the process used for centuries by farmers to produce the breeds that most suits their needs.

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.