Theory of Evolution questions and answers

Theory of Evolution
questions and answers
2025-2026
The branches in phylogenetic trees ________.


a. account for time since species diverged
b. indicate evolutionary order
c. are aligned by physical appearance - answer b. indicate
evolutionary order


The Linnaean taxonomic system is ________.


a. being forsaken
b. static
c. fluid - answer c. fluid


Natural selection is ________.


a. the process that causes genetic mutations
b. constant and unchanging
c. based on present environmental conditions - answer c.
based on present environmental conditions

, Structures with no apparent function in a modern
organism are ________.


a. leftover
b. vestigial
c. redundant - answer b. vestigial


Scientists use shared biological components such as
ribosomes to determine relationships among ________.


a. different species within the domains Archaea and
Eukarya
b. individuals of the same species
c. the three domains of life - answer c. the three domains
of life


When two species evolve in unique directions from a
common point, the process of ________ is at work.


a. selective pressure
b. convergent evolution
c. divergent evolution - answer c. divergent evolution


Phylogenetic trees are usually based on ________ evidence.


a. genetic and chemical