Objective Pairs Crossword

This printable crossword puzzle on the topic of Ecology & Evolution has 20 clues. Answers range from 3 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Description

Provide a record of evolution
Shows similarities between organisms as they are developing
All organisms shared a _______ based on structure
_________ Indicates that various organisms share a common ancestor
_______ Are features that are similar in structure but different in function
_______ Are features that are similar in function but different in structure
_______ Are remnants of organs or structures that had a function in an early ancestor
________ Information acquired by observation or experimentation
the set of nongenetic traits, qualities, or features that characterize a person or thing
the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.
the study of this science.
change in the gene pool of a population from generation to generation by such processes as mutation, natural selection, and genetic drift.
the major subdivision of a genus or subgenus, regarded as the basic category of biological classification, composed of related individuals that resemble one another, are able to breed among themselves, but are not able to breed with members of another species
mode of organization; construction and arrangement of tissues, parts, or organs.
the purpose for which something is designed or exists
the process by which forms of life having traits that better enable them to adapt to specific environmental
any alteration in the structure or function of an organism or any of its parts that results from natural selection
a process in the breeding of animals and in the cultivation of plants by which the breeder chooses
the basic physical unit of heredity; a linear sequence of nucleotides along a segment of DNA
any organized body or system conceived of as analogous to a living being

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