How many different proteins, each composed of 8 amino acids, can be constructed using the 20 different amino acids found in proteins?

When organisms are classified ,they are given a two part name

Explain light independent reactions

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.