MediumBiologyHigh School (11–12)Diversity of Living Organisms › Taxonomic Hierarchy and AidsDiversity of Living Organisms › Classification of Living OrganismsConceptual
Three birds have these ranks. House sparrow: Animalia, Chordata, Aves, Passeriformes, Passeridae…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Three birds have these ranks. House sparrow: Animalia, Chordata, Aves, Passeriformes, Passeridae, Passer. Spanish sparrow: Animalia, Chordata, Aves, Passeriformes, Passeridae, Passer. House crow: Animalia, Chordata, Aves, Passeriformes, Corvidae, Corvus. For each pair, find the lowest rank that they share. Which pair is the closest?
Need a reminder? The key ideaShow
The ranks from the smallest: species, genus, family, order, class, phylum (division in plants) and kingdom. A group at any rank is a taxon. Going up, a group holds more organisms that share fewer features. A species is a group with fundamental similarities, whose members can breed and have fertile young.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. The two sparrows. All six ranks match: they share the genus Passer.
Step 2. A sparrow and the crow. They differ at the family, so they share down to the order Passeriformes.
Answer: the two sparrows share ranks, down to the genus, and are the closest pair.
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