and Plant Diversity Verified Multiple Choice and
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1. What is the main goal of taxonomy?
a) To find new species
b) To understand DNA sequences
c) To classify organisms and show evolutionary relationships
d) To study animal behavior
2. What tool is used to identify organisms by answering a series of yes-or-no
questions?
a) Phylogenetic tree
b) Dichotomous key
c) Taxonomy chart
d) Genetic sequence
3. Which of the following is not a reason for classification?
a) To establish identification criteria
b) To group related organisms
c) To eliminate variation within species
d) To understand evolutionary development
4. What is the term for the science of classification of organisms?
a) Taxonomy
b) Physiology
c) Morphology
d) Ecology
,5. What does systematics (also called phylogeny) study?
a) Ecosystem balance
b) Evolutionary history of organisms
c) Cell structure
d) Breeding patterns
6. What is a strain?
a) A harmful variant of a virus
b) A subgroup of a species with distinguishing characteristics
c) A species that has gone extinct
d) A mutation in DNA
7. Which of the following correctly describes the significance of classification?
a) It helps eliminate biodiversity
b) It discourages research on new species
c) It highlights unity and diversity among living organisms
d) It focuses only on microscopic organisms
8. Approximately how many living organisms are estimated to exist?
a) 1 million
b) 10 million
c) Up to 100 million
d) 1 billion
9. How many of the estimated living organisms have been discovered?
a) Less than 10%
b) About 25%
c) Nearly all
d) Over 90%
10. What characteristic is shared by all organisms in a taxonomic group?
a) Geographic location
b) Certain common features
c) Identical DNA
d) Same behavior patterns
,11. The concept of variation within species explains that:
a) Members of a species can differ in traits
b) All members of a species look exactly the same
c) Only one trait varies per species
d) Species variation means genetic defects
12. What is the correct order of taxonomic hierarchy (from broad to specific)?
a) Species → Phylum → Kingdom
b) Kingdom → Phylum → Class → Order → Family → Genus → Species
c) Class → Order → Family → Genus → Species → Kingdom
d) Domain → Species → Genus → Order
13. In binomial nomenclature, the first part of the name refers to the:
a) Species
b) Genus
c) Family
d) Kingdom
14. Which of the following statements best describes a dichotomous key?
a) It shows DNA similarities
b) It uses paired statements to identify organisms
c) It illustrates the food chain
d) It traces phylogenetic lines
15. What field involves classifying organisms based on genetic and evolutionary
similarities?
a) Morphology
b) Systematics
c) Ecology
d) Anatomy
16. Why is it important to classify organisms?
a) To study relationships and understand biological diversity
b) To simplify ecosystems
, c) To isolate harmful species
d) To label all animals
17. What distinguishes a species from a strain?
a) A strain is a higher classification
b) A strain is a variant within a species
c) Species is man-made; strain is natural
d) Strains are used only in animal biology
18. What does classification help scientists do?
a) Avoid studying new organisms
b) Predict characteristics of related species
c) Remove mutations
d) Prevent evolution
19. Which domain includes organisms with no true nucleus?
a) Eukarya
b) Bacteria
c) Animalia
d) Plantae
20. What is one benefit of using a dichotomous key in field biology?
a) It provides genetic sequencing
b) It helps identify species quickly using observable traits
c) It documents behavior patterns
d) It explains taxonomy rules
Classification - ANSWER The grouping of related organisms
Taxonomy - ANSWER Science of the classification of organisms, with the goal
of showing relationships among organisms.