<span>DNA (deoxyribonucleic acid). The DNA makes up genes, and the genes make up chromosomes.</span>
<span>The correct answer is a. the overuse of fertilizer lead to reduced crop yields over time. This was unexpected because it is common for fertilizers to increase the yields and the quality of the product, but what happens over time is the opposite so it can be said that it's an unexpected consequence.</span>
Incomplete please thank and mark brainliest
I believe it is the retina that changes shape to focus on distant objects.