12th Grade > Biology
THE LIVING WORLD MCQs
The Living World, Living Organisms And Their Surroundings, Diversity In Living Organisms
Total Questions : 114
| Page 2 of 12 pages
Answer: Option C. -> Taxon
:
C
A group of organisms at any particular level in a classification system is called as Taxon. The taxon is the fundamental unit of taxonomic classification. The term taxon was coined by Adolf Meyer in 1926 for animals and H.J Lam used this term for plants in 1948.
Taxa are arranged in a hierarchy from kingdom to subspecies, a given taxon ordinarily including several taxa of lower rank. Species, genus and phylum are all specific examples of taxons that have been assigned
:
C
A group of organisms at any particular level in a classification system is called as Taxon. The taxon is the fundamental unit of taxonomic classification. The term taxon was coined by Adolf Meyer in 1926 for animals and H.J Lam used this term for plants in 1948.
Taxa are arranged in a hierarchy from kingdom to subspecies, a given taxon ordinarily including several taxa of lower rank. Species, genus and phylum are all specific examples of taxons that have been assigned
Answer: Option C. -> Collection of endemic and exotic living species
:
C
Botanical gardens and zoological parks are taxonomical aids, and have a collection of both endemic and exotic species of plants and animals respectively. Botanical gardens are specialised gardens that have collections of living plants for reference. Zoological parks are places where wild animals are kept in protected environments under human care, and which enable us to learn about their food habits and behaviour.
:
C
Botanical gardens and zoological parks are taxonomical aids, and have a collection of both endemic and exotic species of plants and animals respectively. Botanical gardens are specialised gardens that have collections of living plants for reference. Zoological parks are places where wild animals are kept in protected environments under human care, and which enable us to learn about their food habits and behaviour.
Answer: Option C. -> Taxon, John Ray
:
C
The term species is the lowest taxonomic category or the least inclusive taxon. The term was coined by John Ray in his 1686 work titled "History of plants”.
:
C
The term species is the lowest taxonomic category or the least inclusive taxon. The term was coined by John Ray in his 1686 work titled "History of plants”.
Answer: Option B. -> False
:
B
A scientific name typically consists of two parts - the generic name and the specific epithet, which are simply the genus and species names respectively. It does not talk about any other taxon to which the organism belongs.
:
B
A scientific name typically consists of two parts - the generic name and the specific epithet, which are simply the genus and species names respectively. It does not talk about any other taxon to which the organism belongs.
Answer: Option C. -> Tetrapoda
:
C
Annelida, Arthropoda and Echinodermata are invertebrate phyla in the Kingdom Animalia. Tetrapoda is a superclass of jawed vertebrates (which come under phylum Chordata).
:
C
Annelida, Arthropoda and Echinodermata are invertebrate phyla in the Kingdom Animalia. Tetrapoda is a superclass of jawed vertebrates (which come under phylum Chordata).
Answer: Option B. -> Perception of events happening in the environment
:
B
Living cells and organisms exhibit metabolism. However, metabolic reactions can be demonstrated outside the body in cell-free systems. An isolated metabolic reaction outside the body of an organism, performed in a test tube is neither living nor non-living. Hence, while metabolism is a defining feature of all living organisms without exception, isolated metabolic reactions in vitro are not living things, but are rather just living reactions. Growth or an increase in mass can be observed in living things. However, non-living objects also grow if we take anincrease in body mass as a criterion for growth. Mountains, boulders and sand mounds grow, although this kind of growth exhibited by non-living objects is through anaccumulation of material on the surface. In living organisms, growth is from inside. Growth, therefore, cannot be taken as a defining property of living organisms.Perception of events happening in the environment or the being conscious of the environment, however, is an exclusive characteristic of living things. All organisms, from the prokaryotes to the most complex eukaryotes can sense and respond to environmental cues.
:
B
Living cells and organisms exhibit metabolism. However, metabolic reactions can be demonstrated outside the body in cell-free systems. An isolated metabolic reaction outside the body of an organism, performed in a test tube is neither living nor non-living. Hence, while metabolism is a defining feature of all living organisms without exception, isolated metabolic reactions in vitro are not living things, but are rather just living reactions. Growth or an increase in mass can be observed in living things. However, non-living objects also grow if we take anincrease in body mass as a criterion for growth. Mountains, boulders and sand mounds grow, although this kind of growth exhibited by non-living objects is through anaccumulation of material on the surface. In living organisms, growth is from inside. Growth, therefore, cannot be taken as a defining property of living organisms.Perception of events happening in the environment or the being conscious of the environment, however, is an exclusive characteristic of living things. All organisms, from the prokaryotes to the most complex eukaryotes can sense and respond to environmental cues.
Answer: Option C. -> Julian Huxley
:
C
The term "New Systematics” was coined by Julian Huxley in 1940. This classification takes into account the cytological, morphological, genetic, anatomical, paleontological and physiological characteristics of an organism.
:
C
The term "New Systematics” was coined by Julian Huxley in 1940. This classification takes into account the cytological, morphological, genetic, anatomical, paleontological and physiological characteristics of an organism.
Answer: Option B. -> False
:
B
All living organisms - plants and animals, respond to their surroundings.We sense our environment through our sense organs. Plants respond to external factors like light, water, temperature, other organisms, pollutants, etc. All organisms, from the prokaryotes to the most complex eukaryotes can sense and respond to environmental cues. Photoperiod affects reproduction in seasonal breeders, both plants, and animals. All organisms handle chemicals entering their bodies. All organisms therefore, are aware of their surroundings. However, human being is the only organism who is aware of himself, i.e., has self-consciousness.
:
B
All living organisms - plants and animals, respond to their surroundings.We sense our environment through our sense organs. Plants respond to external factors like light, water, temperature, other organisms, pollutants, etc. All organisms, from the prokaryotes to the most complex eukaryotes can sense and respond to environmental cues. Photoperiod affects reproduction in seasonal breeders, both plants, and animals. All organisms handle chemicals entering their bodies. All organisms therefore, are aware of their surroundings. However, human being is the only organism who is aware of himself, i.e., has self-consciousness.
Answer: Option A. -> Systematics
:
A
Taxonomy is the study of systematic classification of organisms. Systematics is concerned with the diversity of organisms as well as the relationships among them. Phylogeny is the study of the evolutionary history and relationships among individuals or groups of organisms.
:
A
Taxonomy is the study of systematic classification of organisms. Systematics is concerned with the diversity of organisms as well as the relationships among them. Phylogeny is the study of the evolutionary history and relationships among individuals or groups of organisms.
Answer: Option C. -> Binomial nomenclature
:
C
Linnaeus is famous for introducing binomial nomenclature, which is the scientific system of naming living organisms.
:
C
Linnaeus is famous for introducing binomial nomenclature, which is the scientific system of naming living organisms.
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