BIO 182 Exam 2 Questions and Verified Answers 2024
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Course
BIO 182
Institution
BIO 182
BIO 182 Exam 2 Questions and Verified
Answers 2024
What is systematics? - answerStudy of biological diversity and the evolutionary relationships
among organisms, both extinct and modern
What is Taxonomy? - answerScience of describing, naming, and classifying living and extinct
organisms and vi...
What are the two ways a new species can be formed? - answer✔-Anagenesis - single species
evolves into a different species
-Cladogenesis - a species diverges into two or more species
What is Homology? - answer✔Similarities among various species that occur because they are
derived from a common ancestor
What does cladistics compare? - answer✔Study and classification of species based on
evolutionary relationships
-considering the various possible pathways of changes and then choosing the tree that requires
the least complex explanation
What is the difference between a primitive character and a derived character? - answer✔-
Primitive: Shared by two or more different taxa and inherited from ancestors older than their last
common ancestor
-Derived: Shared by two or more species or taxa and has originated in their most recent common
ancestor
Be able to explain and put in a time frame some of the major episodes in the history of life on
earth. (The clock analogy) - answer✔-13.7 bya - Universe began with the Big Bang
-4.6 bya -- Our solar system began
-The Earth is 4.55 billion years old
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