Answer: The rungs of the ladder are formed by complementary pairs of nitrogen bases — A always paired with T and G always paired with C.
Explanation:
From the sun. The plant uses oxygen and sunlight to make carbon dioxide.
Answer:
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called. Every person has two copies of each gene, one inherited from each parent.
Explanation:
Algae, the probably compete for the
Food source.