George heard that plants compete for space. He decided to test this idea. He bought a mixture of flower seeds and some potting soil. Into each of 5 plastic cups he put the same amount of soil. In the first cup
he planted 2 seeds, in the second cup he planted 4 seeds, in the third cup he planted 8 seeds, in the
fourth cup he planted 16 seeds, and in the last cup he planted 32 seeds. After 25 days he decided which
set of plants looked best.