184898
The pioneers in the field of organic evolution are:
1 Karl Landsteiner, Hugo de Vries, Malthus
2 Darwin, Hugo de Vries, Lamarck, Huxley
3 Lamarck, Karl landsteiner, Malthus, Hugo de Vries
4 Darwin, Lamarck, Karl Landsteiner, Hugo de Vries
Explanation:
Organic evolution is a process of cumulative change of living populations and in the descendant populations of organisms. In other words it is 'descent with modification'. The pioneer's in the field of organic evolution are Darwin, Hugo de Vries Lamarck and Huxley.
WB JEE-2006
Evolution
184901
Living fossils means
1 primitive organized organisms
2 extinct organisms
3 organisms with ancestral characters and time has not changed them
4 connecting link between two groups
Explanation:
Living fossils means organisms with ancestral characters and time has not changed them. - Living fossils are species discovered first as a fossil and believed to extinct, but which is later found living. Any living species which closely resembles fossil relatives, that has remained essentially unchanged from earlier geologic times and whose close relative are usually extinct. As - horseshoe crabs (family limielidae), Sphenodon Ginkgo biloba etc.
BVP-2010
Evolution
184902
Which one of the following is vestigial organ of human?
1 Hair
2 Intestine
3 Wisdom teeth
4 Muscle of glottis
Explanation:
Vestigial organs are believed to be remnants of organs which were complete and functional in their ancestors. The organs which are present in reduced form and do not perform any function in the body but correspond to the fully developed functional organs of related animals are called vestigial organs. Some vestigial organs in Human body :- Third molars (wisdom teeth), Nictitating membrane (Plica semilunaris), auricular muscles (ear pinna muscles), vermiform appendix, Nipples in male etc.
184903
Organs not similar in structure and origin but perform the same function
1 homologous structures
2 analogous structures
3 adaptive structures
4 variable structures
Explanation:
The organs which have similar functions but are different in their structure details and origin are called analogous organs. The analogous structures are the result of convergent evolution. Example - The wings of an insect are analogous to wings of a bird. It is due to the fact that the basic structure of the wings of insects is different from the wings of birds. However their function is similar, similarly, fins of fishes and flippers of whale, sting of honey-bee and scorpion etc.
184898
The pioneers in the field of organic evolution are:
1 Karl Landsteiner, Hugo de Vries, Malthus
2 Darwin, Hugo de Vries, Lamarck, Huxley
3 Lamarck, Karl landsteiner, Malthus, Hugo de Vries
4 Darwin, Lamarck, Karl Landsteiner, Hugo de Vries
Explanation:
Organic evolution is a process of cumulative change of living populations and in the descendant populations of organisms. In other words it is 'descent with modification'. The pioneer's in the field of organic evolution are Darwin, Hugo de Vries Lamarck and Huxley.
WB JEE-2006
Evolution
184901
Living fossils means
1 primitive organized organisms
2 extinct organisms
3 organisms with ancestral characters and time has not changed them
4 connecting link between two groups
Explanation:
Living fossils means organisms with ancestral characters and time has not changed them. - Living fossils are species discovered first as a fossil and believed to extinct, but which is later found living. Any living species which closely resembles fossil relatives, that has remained essentially unchanged from earlier geologic times and whose close relative are usually extinct. As - horseshoe crabs (family limielidae), Sphenodon Ginkgo biloba etc.
BVP-2010
Evolution
184902
Which one of the following is vestigial organ of human?
1 Hair
2 Intestine
3 Wisdom teeth
4 Muscle of glottis
Explanation:
Vestigial organs are believed to be remnants of organs which were complete and functional in their ancestors. The organs which are present in reduced form and do not perform any function in the body but correspond to the fully developed functional organs of related animals are called vestigial organs. Some vestigial organs in Human body :- Third molars (wisdom teeth), Nictitating membrane (Plica semilunaris), auricular muscles (ear pinna muscles), vermiform appendix, Nipples in male etc.
184903
Organs not similar in structure and origin but perform the same function
1 homologous structures
2 analogous structures
3 adaptive structures
4 variable structures
Explanation:
The organs which have similar functions but are different in their structure details and origin are called analogous organs. The analogous structures are the result of convergent evolution. Example - The wings of an insect are analogous to wings of a bird. It is due to the fact that the basic structure of the wings of insects is different from the wings of birds. However their function is similar, similarly, fins of fishes and flippers of whale, sting of honey-bee and scorpion etc.
184898
The pioneers in the field of organic evolution are:
1 Karl Landsteiner, Hugo de Vries, Malthus
2 Darwin, Hugo de Vries, Lamarck, Huxley
3 Lamarck, Karl landsteiner, Malthus, Hugo de Vries
4 Darwin, Lamarck, Karl Landsteiner, Hugo de Vries
Explanation:
Organic evolution is a process of cumulative change of living populations and in the descendant populations of organisms. In other words it is 'descent with modification'. The pioneer's in the field of organic evolution are Darwin, Hugo de Vries Lamarck and Huxley.
WB JEE-2006
Evolution
184901
Living fossils means
1 primitive organized organisms
2 extinct organisms
3 organisms with ancestral characters and time has not changed them
4 connecting link between two groups
Explanation:
Living fossils means organisms with ancestral characters and time has not changed them. - Living fossils are species discovered first as a fossil and believed to extinct, but which is later found living. Any living species which closely resembles fossil relatives, that has remained essentially unchanged from earlier geologic times and whose close relative are usually extinct. As - horseshoe crabs (family limielidae), Sphenodon Ginkgo biloba etc.
BVP-2010
Evolution
184902
Which one of the following is vestigial organ of human?
1 Hair
2 Intestine
3 Wisdom teeth
4 Muscle of glottis
Explanation:
Vestigial organs are believed to be remnants of organs which were complete and functional in their ancestors. The organs which are present in reduced form and do not perform any function in the body but correspond to the fully developed functional organs of related animals are called vestigial organs. Some vestigial organs in Human body :- Third molars (wisdom teeth), Nictitating membrane (Plica semilunaris), auricular muscles (ear pinna muscles), vermiform appendix, Nipples in male etc.
184903
Organs not similar in structure and origin but perform the same function
1 homologous structures
2 analogous structures
3 adaptive structures
4 variable structures
Explanation:
The organs which have similar functions but are different in their structure details and origin are called analogous organs. The analogous structures are the result of convergent evolution. Example - The wings of an insect are analogous to wings of a bird. It is due to the fact that the basic structure of the wings of insects is different from the wings of birds. However their function is similar, similarly, fins of fishes and flippers of whale, sting of honey-bee and scorpion etc.
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Evolution
184898
The pioneers in the field of organic evolution are:
1 Karl Landsteiner, Hugo de Vries, Malthus
2 Darwin, Hugo de Vries, Lamarck, Huxley
3 Lamarck, Karl landsteiner, Malthus, Hugo de Vries
4 Darwin, Lamarck, Karl Landsteiner, Hugo de Vries
Explanation:
Organic evolution is a process of cumulative change of living populations and in the descendant populations of organisms. In other words it is 'descent with modification'. The pioneer's in the field of organic evolution are Darwin, Hugo de Vries Lamarck and Huxley.
WB JEE-2006
Evolution
184901
Living fossils means
1 primitive organized organisms
2 extinct organisms
3 organisms with ancestral characters and time has not changed them
4 connecting link between two groups
Explanation:
Living fossils means organisms with ancestral characters and time has not changed them. - Living fossils are species discovered first as a fossil and believed to extinct, but which is later found living. Any living species which closely resembles fossil relatives, that has remained essentially unchanged from earlier geologic times and whose close relative are usually extinct. As - horseshoe crabs (family limielidae), Sphenodon Ginkgo biloba etc.
BVP-2010
Evolution
184902
Which one of the following is vestigial organ of human?
1 Hair
2 Intestine
3 Wisdom teeth
4 Muscle of glottis
Explanation:
Vestigial organs are believed to be remnants of organs which were complete and functional in their ancestors. The organs which are present in reduced form and do not perform any function in the body but correspond to the fully developed functional organs of related animals are called vestigial organs. Some vestigial organs in Human body :- Third molars (wisdom teeth), Nictitating membrane (Plica semilunaris), auricular muscles (ear pinna muscles), vermiform appendix, Nipples in male etc.
184903
Organs not similar in structure and origin but perform the same function
1 homologous structures
2 analogous structures
3 adaptive structures
4 variable structures
Explanation:
The organs which have similar functions but are different in their structure details and origin are called analogous organs. The analogous structures are the result of convergent evolution. Example - The wings of an insect are analogous to wings of a bird. It is due to the fact that the basic structure of the wings of insects is different from the wings of birds. However their function is similar, similarly, fins of fishes and flippers of whale, sting of honey-bee and scorpion etc.
