Explain how carbon based rings and chains can form very large molecules

Carbon based rings & chains form very large molecules because carbon can form up to 4 covalent bonds to form these rings and chains, and these bond with other rings and chains over and over. ... Lipids, proteins, carbohydrates, and nucleic acids are the 4 main types of carbon-based molecules in organisms.

Explanation:

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a

bacterium is not correct