Question

which of the following is not a focus of ecology?
c) the structure of dna
d) responses to changes in the environment
b) organisms effects on their environment
a) interactions among organisms

Explanation:

Ecology focuses on the relationships between organisms and their environment, including interactions among organisms (A), organisms' effects on the environment (B), and responses to environmental changes (D). The structure of DNA is a focus of molecular biology or genetics, not ecology.

Answer:

C) The structure of DNA