The geologic time scale is organized into eras, and the eras are organized into periods.
Answer:
They can alter the phenotype of an organism
Limiting nutrient<span>. The concept of a </span>limiting nutrient<span> is essential to understanding the </span>biological<span> processes. The </span>nutrient<span> in short supply relative to the others will be exhausted first and will thus </span>limit<span> cellular growth</span>