On early earth , what was referred to as the " primordial soup

What protects the lining of the stomach from acidic gastric juices?

Construct an explanation about the function of mitosis for multicellular organisms

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.