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प्रश्न
Find out through internet and popular science articles whether animals other than man have self-consciousness.
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उत्तर
Nature selects for fitness. The so-called fitness is based on the characteristics of the organism which are hereditary. Therefore, there must be a genetic basis for selection and evolution. This means that those organisms (animals) are better adapted to survive in adverse environments. Adaptability is hereditary. The self-consciousness of organisms plays an important role in adaptation. The final result of adaptability and natural selection is fitness. According to biologists, many animals have non-human self-consciousness.
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संबंधित प्रश्न
List 10 modern-day animals and using the internet resources link it to a corresponding ancient fossil. Name both.
Using various resources such as your school library or the internet and discussions with your teacher, trace the evolutionary stages of any one animal say horse.
Which of the following is an example of link species?
When we talk of functional macromolecules (e.g. proteins as enzymes, hormones, receptors, antibodies etc), towards what are they evolving?
Two organisms occupying a particular geographical area (say desert) show similar adaptive strategies. Taking examples, describe the phenomenon.
Practise drawing various animals and plants.
When did the first cellular forms of life appear on Earth?
Which of the following early cell types contributed to the development of multicellular organisms?
When did some fish lineages develop the ability to move onto land?
Which of the following is an adaptation that allowed amphibians to survive in both aquatic and terrestrial conditions?
What major survival advantage did thick-shelled eggs provide to reptiles?
For approximately how many years did reptiles dominate the Earth?
Which of the following is an example of a reptile that returned to the water about 200 mya?
When did dinosaurs disappear from the Earth?
What possible explanation is given for the sudden extinction of dinosaurs?
Which of the following best describes early mammals?
What characteristic makes Tyrannosaurus rex notable among land reptiles?
