Answer:
A) With the closer spacing for the rows, the growing corn plants will quickly form a dense canopy of leaves, which will, by shading the ground, minimize the need for costly weed control and irrigation.
Explanation:
If the space among plants is less, the shadow that they are going to produce is going to reduce the need of water, so they production will rise and the cost to maintain the crops will be less, so the producer can double the profits.
A. Immune system
It helps our bodies fight everything that comes in our path.
The answer your looking for is B different patterns of gene expression
B. It was an explanation for how the earth originated.
