Grade 9 Biology — Characteristics & Classification
An 8-question medium-difficulty multiple-choice exam based on the Grade 9 Biology (Fetena Net) unit on characteristics and classification of organisms. Act as an official Ethiopian Ministry of Education examiner.
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Quiz Questions & Answers
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Question 1: Which of the following best captures why biologists use classification (taxonomy)?
To list organisms alphabetically for easy lookup
To prove that all organisms evolved from a single species
To organize organisms by shared features so relationships can be studied
To separate plants from animals by complexity alone
Question 2: Which characteristic is essential for defining a biological species in the textbook’s primary sense?
All members share identical physical appearance
Members can interbreed and produce fertile offspring
All members have the same number of chromosomes
Members live in the same habitat
Question 3: Which feature distinguishes Archaea from Bacteria according to the unit?
Only Bacteria can perform photosynthesis
Bacteria are multicellular while Archaea are unicellular
Archaea always have membrane-bound nuclei
Cell wall chemical composition and absence of peptidoglycan in Archaea
Question 4: Which taxonomic rank comes directly below Kingdom in the Linnaean hierarchy presented?
Class
Order
Genus
Phylum (or Division for plants)
Question 5: Which property listed in the unit would most directly help you decide if an unknown specimen is alive?
Ability to reproduce and produce similar offspring
Having the same color as other living things nearby
Displays ordered complexity and cellular organization
Being able to move when prodded
Question 6: How does the three-domain system improve on the original two-kingdom Linnaean view noted in the text?
By merging animals and plants into one kingdom
By separating prokaryotes into Bacteria and Archaea and grouping eukaryotes in Eukarya
By adding more kingdom ranks beneath species
By requiring all organisms to be classified by color
Question 7: Which of the following examples from the unit best illustrates how taxonomy can benefit the economy or human welfare?
Naming organisms with very long Latin phrases
Removing all fungi because they are non-photosynthetic
Identifying related tree species that may supply useful disinfectant chemicals
Grouping animals by color pattern for art projects
Question 8: Which set of characteristics correctly matches Eukarya as described in the unit?
Cells with nucleus, membrane-bound organelles, linear chromosomes with histones
Unicellular organisms only with photosynthetic pigments
Cells that always generate methane and live only in extreme environments
No nucleus and circular chromosome, cell wall with peptidoglycan