They lead to new versions of proteins that help organisms adapt to changes in their environment.
How DNA supports the idea that life change over time is the DNA follow life history and can adopt to thinks very quick
Organism, Species, Population, Community, Ecosystem, Biome, Biosphere
I would have to say (D.) if it's been 150 years.
A. A steep positive slope. Since the speed is going UP, it is positive. Since it is happening quickly, the line will jump steeper. Hope that helps!