The Mesozoic era (about 252-66 mya) when reptiles, especially dinosaurs, ruled the world. Mesozoic era is also called' the golden age of reptiles'. This era divided into three period. Triassic, Jurassic and cretaceous.
AIPMT-2002
Evolution
185173
Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as:
1 Genetic load
2 Genetic flow
3 Genetic drift
4 Random mating
Explanation:
Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as genetic drift. Random| changes in gene frequencies due to change in large population is called genetic drift. Genetic drift is an important mechanism in evolutionary change in small population. It is also a mechanism of evolution in which allele frequencies of a population change over generations due to chance.
NEET-2013
Evolution
185174
According to Darwin, the organic evolution is due to :
1 Reduced feeding efficiency is one species due to the presence of interfering species
2 Intraspecific competition
3 Interspecific competition
4 Competition within closely related species
Explanation:
The term organic evolution was proposed by 'Charles Darwin'. According to Darwin, organic evolution is due to interspecific competition. Interspecific competition is a type of competition in which the individual of two different species compete for the same resources such as food, water, habitat, etc. Therefore, it has been clear from the above discussion that according to Darwin, the organic evolution is due to interspecific competition.
The correct sequence is: Palaeozoic \(\rightarrow\) Mesozoic \(\rightarrow\) Cenozoic - These represent distinct periods in Earth's history, with the Paleozoic era characterized by the emergence of complex life forms, followed by the Mesozoic era known for the age of dinosaurs, and Finally, the Cenozoic era marked by the rise of mammals and the development of modern ecosystems.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Evolution
185169
In which era reptiles were dominated. -
1 Coenozoic era
2 Mesozoic era
3 Paleozoic era
4 Archaeozoic era
Explanation:
The Mesozoic era (about 252-66 mya) when reptiles, especially dinosaurs, ruled the world. Mesozoic era is also called' the golden age of reptiles'. This era divided into three period. Triassic, Jurassic and cretaceous.
AIPMT-2002
Evolution
185173
Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as:
1 Genetic load
2 Genetic flow
3 Genetic drift
4 Random mating
Explanation:
Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as genetic drift. Random| changes in gene frequencies due to change in large population is called genetic drift. Genetic drift is an important mechanism in evolutionary change in small population. It is also a mechanism of evolution in which allele frequencies of a population change over generations due to chance.
NEET-2013
Evolution
185174
According to Darwin, the organic evolution is due to :
1 Reduced feeding efficiency is one species due to the presence of interfering species
2 Intraspecific competition
3 Interspecific competition
4 Competition within closely related species
Explanation:
The term organic evolution was proposed by 'Charles Darwin'. According to Darwin, organic evolution is due to interspecific competition. Interspecific competition is a type of competition in which the individual of two different species compete for the same resources such as food, water, habitat, etc. Therefore, it has been clear from the above discussion that according to Darwin, the organic evolution is due to interspecific competition.
The correct sequence is: Palaeozoic \(\rightarrow\) Mesozoic \(\rightarrow\) Cenozoic - These represent distinct periods in Earth's history, with the Paleozoic era characterized by the emergence of complex life forms, followed by the Mesozoic era known for the age of dinosaurs, and Finally, the Cenozoic era marked by the rise of mammals and the development of modern ecosystems.
The Mesozoic era (about 252-66 mya) when reptiles, especially dinosaurs, ruled the world. Mesozoic era is also called' the golden age of reptiles'. This era divided into three period. Triassic, Jurassic and cretaceous.
AIPMT-2002
Evolution
185173
Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as:
1 Genetic load
2 Genetic flow
3 Genetic drift
4 Random mating
Explanation:
Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as genetic drift. Random| changes in gene frequencies due to change in large population is called genetic drift. Genetic drift is an important mechanism in evolutionary change in small population. It is also a mechanism of evolution in which allele frequencies of a population change over generations due to chance.
NEET-2013
Evolution
185174
According to Darwin, the organic evolution is due to :
1 Reduced feeding efficiency is one species due to the presence of interfering species
2 Intraspecific competition
3 Interspecific competition
4 Competition within closely related species
Explanation:
The term organic evolution was proposed by 'Charles Darwin'. According to Darwin, organic evolution is due to interspecific competition. Interspecific competition is a type of competition in which the individual of two different species compete for the same resources such as food, water, habitat, etc. Therefore, it has been clear from the above discussion that according to Darwin, the organic evolution is due to interspecific competition.
The correct sequence is: Palaeozoic \(\rightarrow\) Mesozoic \(\rightarrow\) Cenozoic - These represent distinct periods in Earth's history, with the Paleozoic era characterized by the emergence of complex life forms, followed by the Mesozoic era known for the age of dinosaurs, and Finally, the Cenozoic era marked by the rise of mammals and the development of modern ecosystems.
The Mesozoic era (about 252-66 mya) when reptiles, especially dinosaurs, ruled the world. Mesozoic era is also called' the golden age of reptiles'. This era divided into three period. Triassic, Jurassic and cretaceous.
AIPMT-2002
Evolution
185173
Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as:
1 Genetic load
2 Genetic flow
3 Genetic drift
4 Random mating
Explanation:
Variation in gene frequencies within population can occur by chance rather than by natural selection. This is referred to as genetic drift. Random| changes in gene frequencies due to change in large population is called genetic drift. Genetic drift is an important mechanism in evolutionary change in small population. It is also a mechanism of evolution in which allele frequencies of a population change over generations due to chance.
NEET-2013
Evolution
185174
According to Darwin, the organic evolution is due to :
1 Reduced feeding efficiency is one species due to the presence of interfering species
2 Intraspecific competition
3 Interspecific competition
4 Competition within closely related species
Explanation:
The term organic evolution was proposed by 'Charles Darwin'. According to Darwin, organic evolution is due to interspecific competition. Interspecific competition is a type of competition in which the individual of two different species compete for the same resources such as food, water, habitat, etc. Therefore, it has been clear from the above discussion that according to Darwin, the organic evolution is due to interspecific competition.
The correct sequence is: Palaeozoic \(\rightarrow\) Mesozoic \(\rightarrow\) Cenozoic - These represent distinct periods in Earth's history, with the Paleozoic era characterized by the emergence of complex life forms, followed by the Mesozoic era known for the age of dinosaurs, and Finally, the Cenozoic era marked by the rise of mammals and the development of modern ecosystems.