Wich pair of molecules both contain carbon atoms ?

Fats and Proteins

Explanation:

Fats and Proteins are the kind of the primary molecules that contain carbon atoms. Of course other molecules such as water, and carbohydrates both contain carbon atoms.

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.