NEET Exam > NEET Videos > Crash Course for NEET > Practice Questions: The Living World, Biological Classification, Animal Kingdom
Practice Questions: The Living World, Biological Classification, Animal Kingdom Video Lecture | Crash Course for NEET
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FAQs on Practice Questions: The Living World, Biological Classification, Animal Kingdom Video Lecture - Crash Course for NEET
| 1. What is the importance of classification in biology? |  |
Ans. Classification is important in biology as it helps in organizing and categorizing the vast diversity of living organisms. It enables scientists to study and understand the characteristics, relationships, and evolutionary history of different species. Classification also helps in identifying and naming new species, and plays a crucial role in fields such as ecology, conservation, and medicine.
| 2. What are the major criteria used in the classification of organisms? | |
Ans. The major criteria used in the classification of organisms are morphological characteristics, genetic information, evolutionary relationships, and ecological roles. Morphological characteristics include the physical appearance, structure, and anatomy of an organism. Genetic information, such as DNA sequences, is used to determine the genetic relatedness among different species. Evolutionary relationships are assessed through comparative studies of fossils and living organisms. Ecological roles refer to the niche or role an organism plays in its environment.
| 3. What is the difference between artificial and natural classification systems? | |
Ans. Artificial classification systems are based on a limited number of observable characteristics and are primarily used for practical purposes. They do not necessarily reflect the true evolutionary relationships between organisms. Natural classification systems, on the other hand, are based on the evolutionary history and genetic relatedness of organisms. They aim to establish the natural relationships between different species, reflecting their shared ancestry.
| 4. What are the major groups or taxa in the animal kingdom classification system? | |
Ans. The animal kingdom classification system consists of several hierarchical groups or taxa. These include kingdom, phylum, class, order, family, genus, and species. For example, a lion belongs to the kingdom Animalia, phylum Chordata, class Mammalia, order Carnivora, family Felidae, genus Panthera, and species leo.
| 5. What are the main characteristics used to classify animals into different phyla? | |
Ans. Animals are classified into different phyla based on several key characteristics. These include the presence or absence of a backbone (vertebrates vs. invertebrates), body symmetry (radial vs. bilateral), number of tissue layers (diploblastic vs. triploblastic), body cavity development (acoelomate, pseudocoelomate, or coelomate), and presence of specialized features like segmentation, presence of notochord, and type of digestive system. These characteristics help in distinguishing animals and grouping them into different phyla.
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Nov 23, 2024 Last updated |
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