185146
The method of classification, called cladistics, is based on :
1 Natural system
2 Mutation theory
3 Artificial system
4 Evolutionary history
Explanation:
Evolutionary history :- Cladistics is a system of taxonomy in which the organisms are classified into clades (groups) based on collective characteristics and having common ancestry Cladistics is used for classifying organisms and establishing evolutionary relationships between them. The methodology used in cladistics data is used to create cladogram that contains diagrams proposing hypothesis of phylogenetic relationship.
Uttarakhand PMT-2004
Evolution
185149
The phenomenon ontogeny repeats phylogeny is explained by:
1 Natural selection
2 Inheritance theory
3 Mutation theory
4 Recapitulation theory
Explanation:
Von Baer's law was modified as the Biogenetic law or recapitulation theory by Ernst Haeckel in 1866. Haeckel' biogenetic law states that. 'Ontogeny repeats phylogeny'. Ontogeny is the life history of an organism while phylogeny is the evolutionary history of the race of that organism. In other words an organism repeats its ancestral history during its development. For example :- In the development of the frog a fish like tailed larva (tadpole) is formed. Which swims with the tail and respires by the gills. This indicates that the frog has been evolved from a fish like ancestor.
Manipal-2000
Evolution
185152
Which of the following is not a correct pair?
1 Mesozoic era - age of mammals
2 Origin of species - Charles Darwin
3 Study of fossil-Palaeontology
4 Mutation theory-Hugo de Vries
Explanation:
Mesozoic era consists of three periods i.e. Triassic (225 million years ago, Jurassic 145-million years ago i.e. Age of reptiles) and cretaceous (135 million years ago). Mesozoic era ( 252 - 66 million years ago) was the era of medieval life and age of reptiles and gymnosperms. While the Cenozoic era known as the age of mammals.
J and K CET-2006
Evolution
185153
Dinosaurs were most abundant in:
1 Devonian
2 Jurassic
3 Permian
4 Pleistocene
Explanation:
The Mesozoic era is broadly classified into three periods - including Triassic period 225 million year ago, Jurassic period 145 million years ago and cretaceous period 135 million years ago. The occurrence of the first dinosaurs and mammals was noticed in the Triassic period. Diversification and dominancy of dinosaurs was mostly noticed in the Jurassic period. In Jurassic period both carnivores and herbivores were natured vastly. In cretaceous period toothed birds and giant reptiles (dinosaurs) got extinct.
SRM JEEE-2019 / J and K CET-2004 / Haryana PMT-2003
Evolution
185154
The dominant animal during Mesozoic era is:
1 Latimeria
2 Ceratodus
3 Plesiosaurus
4 Climatius
Explanation:
Plesiosaurus were mesozoic reptiles that live dominantly at the same time as dinosaurs. They were carnivours, aquatic (marine) reptiles that lived from the Triassic (225 million years ago) to cretaceous (135 million years ago) periods. They were the largest aquatic animals of that time. Plesiosaurs that belongs to the suborder pliosauroidea are more properly called pliosaurs.
185146
The method of classification, called cladistics, is based on :
1 Natural system
2 Mutation theory
3 Artificial system
4 Evolutionary history
Explanation:
Evolutionary history :- Cladistics is a system of taxonomy in which the organisms are classified into clades (groups) based on collective characteristics and having common ancestry Cladistics is used for classifying organisms and establishing evolutionary relationships between them. The methodology used in cladistics data is used to create cladogram that contains diagrams proposing hypothesis of phylogenetic relationship.
Uttarakhand PMT-2004
Evolution
185149
The phenomenon ontogeny repeats phylogeny is explained by:
1 Natural selection
2 Inheritance theory
3 Mutation theory
4 Recapitulation theory
Explanation:
Von Baer's law was modified as the Biogenetic law or recapitulation theory by Ernst Haeckel in 1866. Haeckel' biogenetic law states that. 'Ontogeny repeats phylogeny'. Ontogeny is the life history of an organism while phylogeny is the evolutionary history of the race of that organism. In other words an organism repeats its ancestral history during its development. For example :- In the development of the frog a fish like tailed larva (tadpole) is formed. Which swims with the tail and respires by the gills. This indicates that the frog has been evolved from a fish like ancestor.
Manipal-2000
Evolution
185152
Which of the following is not a correct pair?
1 Mesozoic era - age of mammals
2 Origin of species - Charles Darwin
3 Study of fossil-Palaeontology
4 Mutation theory-Hugo de Vries
Explanation:
Mesozoic era consists of three periods i.e. Triassic (225 million years ago, Jurassic 145-million years ago i.e. Age of reptiles) and cretaceous (135 million years ago). Mesozoic era ( 252 - 66 million years ago) was the era of medieval life and age of reptiles and gymnosperms. While the Cenozoic era known as the age of mammals.
J and K CET-2006
Evolution
185153
Dinosaurs were most abundant in:
1 Devonian
2 Jurassic
3 Permian
4 Pleistocene
Explanation:
The Mesozoic era is broadly classified into three periods - including Triassic period 225 million year ago, Jurassic period 145 million years ago and cretaceous period 135 million years ago. The occurrence of the first dinosaurs and mammals was noticed in the Triassic period. Diversification and dominancy of dinosaurs was mostly noticed in the Jurassic period. In Jurassic period both carnivores and herbivores were natured vastly. In cretaceous period toothed birds and giant reptiles (dinosaurs) got extinct.
SRM JEEE-2019 / J and K CET-2004 / Haryana PMT-2003
Evolution
185154
The dominant animal during Mesozoic era is:
1 Latimeria
2 Ceratodus
3 Plesiosaurus
4 Climatius
Explanation:
Plesiosaurus were mesozoic reptiles that live dominantly at the same time as dinosaurs. They were carnivours, aquatic (marine) reptiles that lived from the Triassic (225 million years ago) to cretaceous (135 million years ago) periods. They were the largest aquatic animals of that time. Plesiosaurs that belongs to the suborder pliosauroidea are more properly called pliosaurs.
185146
The method of classification, called cladistics, is based on :
1 Natural system
2 Mutation theory
3 Artificial system
4 Evolutionary history
Explanation:
Evolutionary history :- Cladistics is a system of taxonomy in which the organisms are classified into clades (groups) based on collective characteristics and having common ancestry Cladistics is used for classifying organisms and establishing evolutionary relationships between them. The methodology used in cladistics data is used to create cladogram that contains diagrams proposing hypothesis of phylogenetic relationship.
Uttarakhand PMT-2004
Evolution
185149
The phenomenon ontogeny repeats phylogeny is explained by:
1 Natural selection
2 Inheritance theory
3 Mutation theory
4 Recapitulation theory
Explanation:
Von Baer's law was modified as the Biogenetic law or recapitulation theory by Ernst Haeckel in 1866. Haeckel' biogenetic law states that. 'Ontogeny repeats phylogeny'. Ontogeny is the life history of an organism while phylogeny is the evolutionary history of the race of that organism. In other words an organism repeats its ancestral history during its development. For example :- In the development of the frog a fish like tailed larva (tadpole) is formed. Which swims with the tail and respires by the gills. This indicates that the frog has been evolved from a fish like ancestor.
Manipal-2000
Evolution
185152
Which of the following is not a correct pair?
1 Mesozoic era - age of mammals
2 Origin of species - Charles Darwin
3 Study of fossil-Palaeontology
4 Mutation theory-Hugo de Vries
Explanation:
Mesozoic era consists of three periods i.e. Triassic (225 million years ago, Jurassic 145-million years ago i.e. Age of reptiles) and cretaceous (135 million years ago). Mesozoic era ( 252 - 66 million years ago) was the era of medieval life and age of reptiles and gymnosperms. While the Cenozoic era known as the age of mammals.
J and K CET-2006
Evolution
185153
Dinosaurs were most abundant in:
1 Devonian
2 Jurassic
3 Permian
4 Pleistocene
Explanation:
The Mesozoic era is broadly classified into three periods - including Triassic period 225 million year ago, Jurassic period 145 million years ago and cretaceous period 135 million years ago. The occurrence of the first dinosaurs and mammals was noticed in the Triassic period. Diversification and dominancy of dinosaurs was mostly noticed in the Jurassic period. In Jurassic period both carnivores and herbivores were natured vastly. In cretaceous period toothed birds and giant reptiles (dinosaurs) got extinct.
SRM JEEE-2019 / J and K CET-2004 / Haryana PMT-2003
Evolution
185154
The dominant animal during Mesozoic era is:
1 Latimeria
2 Ceratodus
3 Plesiosaurus
4 Climatius
Explanation:
Plesiosaurus were mesozoic reptiles that live dominantly at the same time as dinosaurs. They were carnivours, aquatic (marine) reptiles that lived from the Triassic (225 million years ago) to cretaceous (135 million years ago) periods. They were the largest aquatic animals of that time. Plesiosaurs that belongs to the suborder pliosauroidea are more properly called pliosaurs.
185146
The method of classification, called cladistics, is based on :
1 Natural system
2 Mutation theory
3 Artificial system
4 Evolutionary history
Explanation:
Evolutionary history :- Cladistics is a system of taxonomy in which the organisms are classified into clades (groups) based on collective characteristics and having common ancestry Cladistics is used for classifying organisms and establishing evolutionary relationships between them. The methodology used in cladistics data is used to create cladogram that contains diagrams proposing hypothesis of phylogenetic relationship.
Uttarakhand PMT-2004
Evolution
185149
The phenomenon ontogeny repeats phylogeny is explained by:
1 Natural selection
2 Inheritance theory
3 Mutation theory
4 Recapitulation theory
Explanation:
Von Baer's law was modified as the Biogenetic law or recapitulation theory by Ernst Haeckel in 1866. Haeckel' biogenetic law states that. 'Ontogeny repeats phylogeny'. Ontogeny is the life history of an organism while phylogeny is the evolutionary history of the race of that organism. In other words an organism repeats its ancestral history during its development. For example :- In the development of the frog a fish like tailed larva (tadpole) is formed. Which swims with the tail and respires by the gills. This indicates that the frog has been evolved from a fish like ancestor.
Manipal-2000
Evolution
185152
Which of the following is not a correct pair?
1 Mesozoic era - age of mammals
2 Origin of species - Charles Darwin
3 Study of fossil-Palaeontology
4 Mutation theory-Hugo de Vries
Explanation:
Mesozoic era consists of three periods i.e. Triassic (225 million years ago, Jurassic 145-million years ago i.e. Age of reptiles) and cretaceous (135 million years ago). Mesozoic era ( 252 - 66 million years ago) was the era of medieval life and age of reptiles and gymnosperms. While the Cenozoic era known as the age of mammals.
J and K CET-2006
Evolution
185153
Dinosaurs were most abundant in:
1 Devonian
2 Jurassic
3 Permian
4 Pleistocene
Explanation:
The Mesozoic era is broadly classified into three periods - including Triassic period 225 million year ago, Jurassic period 145 million years ago and cretaceous period 135 million years ago. The occurrence of the first dinosaurs and mammals was noticed in the Triassic period. Diversification and dominancy of dinosaurs was mostly noticed in the Jurassic period. In Jurassic period both carnivores and herbivores were natured vastly. In cretaceous period toothed birds and giant reptiles (dinosaurs) got extinct.
SRM JEEE-2019 / J and K CET-2004 / Haryana PMT-2003
Evolution
185154
The dominant animal during Mesozoic era is:
1 Latimeria
2 Ceratodus
3 Plesiosaurus
4 Climatius
Explanation:
Plesiosaurus were mesozoic reptiles that live dominantly at the same time as dinosaurs. They were carnivours, aquatic (marine) reptiles that lived from the Triassic (225 million years ago) to cretaceous (135 million years ago) periods. They were the largest aquatic animals of that time. Plesiosaurs that belongs to the suborder pliosauroidea are more properly called pliosaurs.
185146
The method of classification, called cladistics, is based on :
1 Natural system
2 Mutation theory
3 Artificial system
4 Evolutionary history
Explanation:
Evolutionary history :- Cladistics is a system of taxonomy in which the organisms are classified into clades (groups) based on collective characteristics and having common ancestry Cladistics is used for classifying organisms and establishing evolutionary relationships between them. The methodology used in cladistics data is used to create cladogram that contains diagrams proposing hypothesis of phylogenetic relationship.
Uttarakhand PMT-2004
Evolution
185149
The phenomenon ontogeny repeats phylogeny is explained by:
1 Natural selection
2 Inheritance theory
3 Mutation theory
4 Recapitulation theory
Explanation:
Von Baer's law was modified as the Biogenetic law or recapitulation theory by Ernst Haeckel in 1866. Haeckel' biogenetic law states that. 'Ontogeny repeats phylogeny'. Ontogeny is the life history of an organism while phylogeny is the evolutionary history of the race of that organism. In other words an organism repeats its ancestral history during its development. For example :- In the development of the frog a fish like tailed larva (tadpole) is formed. Which swims with the tail and respires by the gills. This indicates that the frog has been evolved from a fish like ancestor.
Manipal-2000
Evolution
185152
Which of the following is not a correct pair?
1 Mesozoic era - age of mammals
2 Origin of species - Charles Darwin
3 Study of fossil-Palaeontology
4 Mutation theory-Hugo de Vries
Explanation:
Mesozoic era consists of three periods i.e. Triassic (225 million years ago, Jurassic 145-million years ago i.e. Age of reptiles) and cretaceous (135 million years ago). Mesozoic era ( 252 - 66 million years ago) was the era of medieval life and age of reptiles and gymnosperms. While the Cenozoic era known as the age of mammals.
J and K CET-2006
Evolution
185153
Dinosaurs were most abundant in:
1 Devonian
2 Jurassic
3 Permian
4 Pleistocene
Explanation:
The Mesozoic era is broadly classified into three periods - including Triassic period 225 million year ago, Jurassic period 145 million years ago and cretaceous period 135 million years ago. The occurrence of the first dinosaurs and mammals was noticed in the Triassic period. Diversification and dominancy of dinosaurs was mostly noticed in the Jurassic period. In Jurassic period both carnivores and herbivores were natured vastly. In cretaceous period toothed birds and giant reptiles (dinosaurs) got extinct.
SRM JEEE-2019 / J and K CET-2004 / Haryana PMT-2003
Evolution
185154
The dominant animal during Mesozoic era is:
1 Latimeria
2 Ceratodus
3 Plesiosaurus
4 Climatius
Explanation:
Plesiosaurus were mesozoic reptiles that live dominantly at the same time as dinosaurs. They were carnivours, aquatic (marine) reptiles that lived from the Triassic (225 million years ago) to cretaceous (135 million years ago) periods. They were the largest aquatic animals of that time. Plesiosaurs that belongs to the suborder pliosauroidea are more properly called pliosaurs.
