51 Questions
Which statement best captures the essence of the living world's diversity?
Biodiversity includes a range of 1.7-1.8 million species described
What evokes a deep sense of wonder about the living world?
The beauty of living organisms and their interactions
How do scientists approach the question 'what is living'?
By contrasting living organisms with non-living things
What is the estimated number of species described so far?
Between 1.7-1.8 million
Which of the following locations would likely show the highest diversity in living organisms?
Dense forest
What does biodiversity refer to?
The number and types of organisms present on earth
Why might visiting a dense forest result in observing more species?
Dense forests have a greater variety of habitats
What is one example of the incredible ecological cooperation mentioned?
Molecular traffic inside a cell
What is the highest level of classification that includes all living organisms?
Kingdom
Which taxonomic rank directly comes after the class?
Order
What rank in the taxonomic hierarchy is positioned between family and species?
Genus
A group of related classes is known as what?
Phylum or Division
Which of the following is the basic unit of classification?
Species
What is the process of naming living organisms such that a particular organism is known by the same name all over the world?
Nomenclature
Which code is used for naming plant species?
International Code of Botanical Nomenclature
Which Latin term is used to refer to both the genus and species of an organism in its scientific name?
Binomial nomenclature
Who is credited with introducing the binomial nomenclature system?
Carl Linnaeus
What is the genus name in the scientific name Mangifera indica?
Mangifera
What must be true about the format of biological names in scientific nomenclature?
They must be in Latin and italicized.
What do animal taxonomists use to assign scientific names?
International Code of Zoological Nomenclature
What does the specific epithet represent in a biological name?
The species
What ensures that a scientific name has not been used for any other known organism?
Universal rules
What is necessary for the process of nomenclature of an organism?
Correct identification and description
Which of the following is a genus that includes the lion, leopard, and tiger?
Panthera
Which category is identified based on the assemblage of families with a few similar characters?
Order
Which family includes genera such as Panthera and Felis?
Felidae
Which order does the family Felidae belong to?
Carnivora
The order Primata is a part of which class?
Mammalia
Which of the following groups includes classes such as fishes, amphibians, reptiles, and mammals?
Phylum
Which family includes the genus Solanum?
Solanaceae
Which of the following organisms does NOT belong to the genus Panthera?
Cat
What does a taxonomic category represent?
A rank or unit of classification
In taxonomic studies, what is considered the lowest category?
Species
Which of the following scientific names represents a genus?
Mangifera
What is the genus and species of the lion?
Panthera leo
What is the correct taxonomic classification for domestic cats?
Felis silvestris catus
Which of the following genera belongs to the family Solanaceae?
Solanum
Which category is characterized by the most fundamental similarities?
Species
Which scientist is associated with the naming system used in the taxonomic hierarchy?
Carl Linnaeus
Which of the following is not a genus belonging to the family Felidae?
Canis
Which category in taxonomic hierarchy is defined by common features of a group of species?
Genus
What is the process of grouping anything into convenient categories based on observable characters?
Classification
What does the term 'taxa' refer to?
Categories at different levels
What does the presence of 'Linn.' after Mangifera indica signify?
The species was discovered by Linnaeus
Which of these is NOT a part of the processes that are essential to taxonomy?
Domestication
What is the branch of study that involves the systematic arrangement of organisms?
Systematics
Which word is derived from Latin and means 'systematic arrangement of organisms'?
Systematics
Which kingdom in the domain Eukarya includes organisms like protists?
Protista
According to the item, how did early human beings classify organisms?
Based on uses
What type of information is essential and forms the basis of modern taxonomic studies?
All of the above
Which process involves naming and grouping living organisms into taxa?
Taxonomy
Study Notes
The Living World
- The living world is diverse, ranging from plants to animals, and is characterized by a wide range of habitats, including cold mountains, deciduous forests, oceans, and deserts.
- There are approximately 1.7-1.8 million known species of plants and animals.
Diversity in the Living World
- The number of species known and described ranges from 1.7-1.8 million.
- Each different kind of plant, animal, or organism represents a species.
- Biodiversity refers to the number and types of organisms present on Earth.
Nomenclature
- Nomenclature is the process of standardizing the naming of living organisms to ensure a common name worldwide.
- Scientific names are based on agreed principles and criteria, and are essential for biologists to communicate effectively.
- The International Code for Botanical Nomenclature (ICBN) provides guidelines for naming plants, while the International Code of Zoological Nomenclature (ICZN) provides guidelines for naming animals.
- Biological names are generally in Latin, written in italics, and consist of a generic name and a specific epithet (e.g., Mangifera indica).
- The first word of a biological name represents the genus, while the second word represents the specific epithet.
Classification
- Classification is the process of grouping organisms into convenient categories based on similarities.
- Taxa are categories used to study organisms, and can indicate categories at different levels (e.g., plants, animals, dogs, cats).
- Taxonomy is the branch of study that deals with the classification, identification, and naming of organisms.
- External and internal structure, development process, and ecological information of organisms are essential for modern taxonomic studies.
Taxonomic Categories
- Species: a group of individual organisms with fundamental similarities.
- Genus: a group of related species that share common characteristics.
- Family: a group of related genera that share common features.
- Order: a group of related families that exhibit a few similar characters.
- Class: a group of related orders that share common characteristics.
- Phylum or Division: a group of related classes that share common characteristics.
- Kingdom: the highest level of classification that includes all living organisms.
3 Domains of Life
- Archaea/Archaebacteria
- Prokarya/Eukarya
- Eukarya
- Monera - Protista
- Animalia - Fungi - Plantae
Explore the diversity of living organisms, including plants and animals, and their habitats in different ecosystems, with a focus on species, biodiversity, and more.
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