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BIOLOGY - UNIT 1: TAXONOMY: KEY TO ORGANIZATION CONCEPT OF SPECIES
Terms in this set (16)
The form or appearance of an organism. The collection of physical characteristics and the structure which make up an organism. A basis for species definition.
The separation of populations of organisms by some type of barrier to produce variations of species. No reproduction or exchange of genes occurs between the separated groups. A basis for species definition.
With bias. Thoughts or interpretations based on the feelings and personal evaluations of the scientist.
The lowest rank of taxa is the
The exact boundaries, limitations, and meaning of species is now known and agreed upon universally.
The taxon "species" may be defined by which of the following concepts?
morphology, reproductive isolation
The classification of species by morphology involves:
The concept of reproductive isolation relates more toward genetic _____ to distinguish between species.
If you were to classify the many breeds of dogs by morphology, what would be inferred regarding species?
the numerous varieties might be classified as distinct species
Regarding the relationship of horses to donkeys:
-they are identical species according to the concept of morphology
-they are separate species according to the concept of reproduction
Are horses and donkeys of the same species?
no, according to reproductive isolation
yes, according to morphology
Horses and donkeys are not of the same species when defined by reproductive isolation because:
Offspring of a horse and donkey are unable to reproduce.
Taxonomy is a rigorous, objective science.
The complexity of life, combined with our limited knowledge:
sometimes prevents conclusive classification
What is the genus of the popular fossils which are similar to "Lucy"?
Computerized analysis of the "Lucy" type fossil has:
helped to add objectivity to the classification of fossil taxa
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