Ace A Level Biology 2026 – Dive Deep and Conquer Science!

The correct choice highlights the organisms that fall under the kingdom Fungi, which includes yeasts, moulds, and mushrooms. These organisms share specific characteristics that define them as fungi. They are eukaryotic, meaning their cells have a nucleus, and they typically obtain their nutrients through absorption rather than photosynthesis (as plants do) or ingestion (as animals do). Fungi play critical roles in decomposition and nutrient cycling within ecosystems.

The other groups listed do not belong to the kingdom Fungi. Bacteria and viruses are classified under the domains Bacteria and viruses, respectively, which are fundamentally different from fungi. Green plants and algae belong to the kingdom Plantae and are primarily autotrophic, absorbing energy through photosynthesis. Lastly, insects and arachnids are part of the kingdom Animalia, characterized by their mobility and heterotrophic feeding behavior, further differentiating them from fungi.