Questions and Answers
What is the modern classification system based on?
structural similarities and evolutionary relationships
How are organisms grouped in the 5 kingdom classification system?
based on their structure and evolutionary relationships
Under one modern system of classification, some species of algae are classified as what?
protists
Which group of terms is in the correct order from most general to most specific?
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Homo erectus and Homo sapien are classified in the same what?
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In which kingdom is an organism classified if it lacks a membrane separating most of its genetic material from its cytoplasm?
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Organisms classified in the same genus must be in the same phylum, but may be of different species.
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Hydras, earthworms, grasshoppers, and humans are classified in the same what?
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What does the scientific name Musca domestica indicate about the housefly?
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If Plants A and B are classified as members of the same species, what is true?
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Which is the most specific term used to classify humans?
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In the binomial system of nomenclature, which two classification groups provide the scientific name of an organism?
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What does the word Drosophila refer to in the scientific name Drosophila melanogaster?
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Study Notes
Modern Classification System
- Classification is based on structural similarities and evolutionary relationships.
- Organisms are categorized into a five kingdom classification system focusing on structure and evolution.
Classification of Algae
- Certain species of algae are unicellular, motile, and photosynthetic; classified as protists.
Hierarchical Classification
- The correct order of biological classification from most general to specific: kingdom, phylum, genus, and species.
- Homo erectus and Homo sapiens share the same kingdom, phylum, and genus.
Kingdom Monera
- Organisms lacking a membrane separating genetic material from cytoplasm are classified in the kingdom Monera.
Genus Characteristics
- Organisms in the same genus must share a phylum but can belong to different species.
Common Classification of Animals
- Hydras, earthworms, grasshoppers, and humans belong to the same kingdom.
Scientific Naming Convention
- The scientific name of an organism comprises its genus and species.
- Example: The common housefly's scientific name is Musca domestica, revealing its genus (Musca) and species (domestica).
Species Characteristics
- Plants A and B, being the same species, share many common characteristics, while Plants C and D are in the same genus but different species from A and B.
Specific Classification for Humans
- The most specific classification term for humans is sapiens.
Binomial Nomenclature
- In binomial nomenclature, the two classification groups that constitute an organism's scientific name are genus and species.
Fruit Fly Classification
- The scientific name for the fruit fly is Drosophila melanogaster; "Drosophila" indicates the genus classification.
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Description
This quiz focuses on the modern classification system in biology, emphasizing structural similarities and evolutionary relationships among organisms. It also covers the five-kingdom classification system and the specific traits of various organisms like algae. Test your knowledge and understanding in this crucial area of biology.
