Biology - Unit 1 - Taxonomy: Key to Organization: Concept of Species
morphology
The form or appearance of an organism
reproductive isolation
The separation of organisms by some type of barrier
The concept of reproductive isolation relates more toward genetic _____ to distinguish between species.
differences
Computerized analysis of the "Lucy" type fossil has:
helped to add objectivity to the classification of fossil taxa
Which of the two methods for determining the species taxon would involve greater subjectivity?
morphology
The taxon "species" may be defined by which of the following concepts?
morphology reproductive isolation
Are horses and donkeys of the same species?
no, according to reproductive isolation yes, according to morphology
The complexity of life, combined with our limited knowledge:
sometimes prevents conclusive classification
The lowest rank of taxa is the
species
The classification of species by morphology involves:
structure shape colors physical traits
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
What is the genus of the popular fossils which are similar to "Lucy"?
Australopithecus
Taxonomy is a rigorous, objective science.
False
The exact boundaries, limitations, and meaning of species is now known and agreed upon universally.
False
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.
According to reproductive isolation, all the varieties of dogs would be considered as one species.
True
subjective
With bias
A subjective piece of information depends more on _____; an objective piece of information depends more on _____
a scientist's feelings, actual observations
