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Classification of Living Things

Across
A classification grouping that consists of a number of similar, closely related species
An organism whose cell contains a nucleus.
The scientific study of how living things are classified
The process of grouping things based on their similarities
The broadest (largest) level of organization
The classification system in which each organism is given a unique, two-part scientific name indicating its genus and species
Down
A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce.
A botanist (scientist who studies plants) who came up with a system for classifying organisms
A unicellular organism that lacks a nucleus
A living thing