Question

For many generations, farmers in North America have been producing corn seeds for the following year's crop by cross breeding plants which produced large ears of corn in the current crop.


What is this technique called?
A.
natural selection
B.
mitosis
C.
asexual budding
D.
artificial selection

Answer 1

D. artificial selection

Farmers intentionally choose which plants to breed for desirable traits (large ears) — a human-directed form of selection — so this is artificial selection.