Final answer:
The organism that is not correctly matched to its energy source is the decomposer, as decomposers primarily break down organic material, not inorganic substances. Humans are classified as heterotrophs and omnivores.
Step-by-step explanation:
The question asks to identify which organism is not correctly matched to its energy source. Analyzing each option:
- Herbivores gain energy from eating plants.
- Carnivores get their energy from consuming other animals.
- Autotrophs, such as plants and some bacteria, produce their own energy from sunlight through photosynthesis or from inorganic molecules via chemosynthesis.
- Decomposers, like fungi and bacteria, break down dead organic matter to obtain energy.
The one that is not correctly matched is option D: Decomposer - Inorganic substances. Decomposers do not typically use inorganic substances directly for energy; rather, they break down organic material from plants and animals and recycle nutrients back into the ecosystem.
Humans would fit the terms heterotroph and omnivore because they cannot produce their own food (hence not autotrophs) and they consume both plant and animal matter.