NEET · Biology · Biological Classification doubts
10 doubts found
Why aren't viruses placed in any of the five kingdoms of life?
The five-kingdom system classifies cellular organisms, but a virus isn't a cell at all — it's just nucleic acid (DNA or RNA) wrapped in protein.
Mushrooms don't move and grow in soil like plants — so why are fungi a separate kingdom?
Classification rests on cell structure and nutrition, not appearance.
Why is Euglena so difficult to classify as either a plant or an animal?
Euglena shows both sets of traits.
Why are lichens used as indicators of air pollution?
A lichen is a symbiosis: a fungus provides shelter and water while an alga (or cyanobacterium) photosynthesises food.
What does “Five-kingdom system” actually mean in Biological Classification, and why does it matter for NEET?
Whittaker grouped life into Monera, Protista, Fungi, Plantae and Animalia using cell structure and mode of nutrition.
I keep getting “Five-kingdom system” questions wrong in Biological Classification. What's the trap?
thinking classification is based on size or habitat rather than cell type and nutrition.
What does “Mode of nutrition” actually mean in Biological Classification, and why does it matter for NEET?
autotrophs make their own food (plants), heterotrophs take it from others (fungi, animals), and some absorb it (saprophytes).
I keep getting “Mode of nutrition” questions wrong in Biological Classification. What's the trap?
grouping fungi with plants because both are non-motile.
What does “Viruses” actually mean in Biological Classification, and why does it matter for NEET?
acellular particles of a nucleic acid core in a protein coat that can only reproduce inside a host cell.
I keep getting “Viruses” questions wrong in Biological Classification. What's the trap?
placing viruses inside the five kingdoms.