Questions and Answers
What is an allele?
An allele is an alternate form of a gene.
What is the classification system?
Kingdom, Phylum, Class, Order, Family, Genus, Species.
What is the main advantage of the present system of scientific naming for classifying organisms?
It avoids the confusion of the same species having different common names in different places.
__________ ____ is the correct format for the scientific name for the African lion.
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What is the scientific name of the African lion?
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What is the correct scientific name for the orange-barred sulfur?
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In the name Morpho rhetenor, what does Morpho refer to?
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What do the lion, leopard, and tiger share?
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In the new 6-kingdom system of classification, how are organisms grouped?
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There are 4 kingdoms within the domain Eukarya. They include: _________, ______, _______, and __________.
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Prokaryotes are divided into two kingdoms and two domains: __________ and __________.
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The Eubacteria Kingdom is made of unicellular prokaryotes. ________, ________, and __________ are composed of eukaryotic cells.
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The ONLY kingdom you can rule out immediately if a specimen has cell walls is?
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What does the word dichotomous mean?
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Why can a wolf and a dog breed and have pups?
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Fungi are ______________ that _______ ________ and nutrients from dead and decaying organic matter.
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Plants are ___________ autotrophs with a cell wall of cellulose.
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Animals are multicellular ______________ without a cell wall.
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What is taxonomy?
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What is a genus?
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What are species?
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What is a phylum?
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What is class in biological classification?
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Study Notes
Taxonomy and Classification of Organisms
- Classification system includes levels: Kingdom, Phylum, Class, Order, Family, Genus, Species.
- Genus represents the most specific classification in the system.
Scientific Naming
- Scientific naming (binomial nomenclature) reduces confusion from different common names.
- Genus name is capitalized; species name is lowercase and italicized (e.g., Panthera leo).
Examples of Scientific Names
- African lion: Panthera leo
- Orange-barred sulfur: Phoebis philea
- Morpho rhetenor: Genus name is Morpho.
Taxonomic Relationships
- Panthera genus includes lions (Panthera leo), leopards (Panthera pardus), and tigers (Panthera tigris).
- All share the Genus 'Panthera'.
Domains and Kingdoms
- Eukarya domain consists of four kingdoms: Protists, Fungi, Plants, Animals.
- Prokaryotes are classified into two domains: Archaea and Bacteria.
- Eubacteria consist of unicellular prokaryotes, whereas Fungi, Plants, and Protists consist of eukaryotic cells.
Characteristics of Organisms
- Organisms with cell walls can be ruled out as Animalia.
- Fungi are heterotrophs that obtain energy from decomposing matter; they have chitin in their cell walls.
- Plants are multicellular autotrophs with cellulose in cell walls.
- Animals are multicellular heterotrophs with no cell wall.
Definitions and Concepts
- Taxonomy is the science of naming and grouping organisms.
- Genus includes organisms that are related and share certain characteristics.
- Species consists of groups of capable reproducing populations isolated from other groups.
- Phylum is ranked above Class and below Kingdom in taxonomy.
- Class is ranked above Order and below Phylum.
Identification Tools
- Dichotomous keys help in identifying organisms systematically, based on either/or choices (e.g., male or female).
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Description
This quiz covers the classification system of organisms, focusing on taxonomy and genetic terms. Explore key definitions such as alleles and levels of the classification hierarchy including Kingdom, Phylum, and more. Perfect for biology students wanting to reinforce their understanding of organism classification.
