Answer:
b., c., e. are the answers.
Purines have double rings, whereas pyrimidines have single rings.
Answer: daily
Explanation:
The tide comes in and out every day with the rising and setting of the moon.
Proteins are made inside cells. When a cell makes a protein it is called protein synthesis.
Answer: D, to create the soil
Explanation:
Primary succession occurs on basically empty, lifeless land with no soil. Pioneer species are the first plants to colonize the land after primary succession, which means they are very primitive and can survive without soil. Since there is no soil, their role is to create soil for more advanced organisms to survive in the area in the future.
