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Solved Examples: The Living World | NCERT Exemplar & Revision Notes for NEET PDF Download

Q.1. Which one of the following animals is correctly matched with its particular named taxonomic category?    (CBSE PMT’2011)
(a) Tiger – Tigris, the species
(b) Cuttlefish – Mollusca, a class
(c) Humans – primate, the family
(d) Housefly – musca, an order

Ans: a
Solution:
Tiger and tigris both are from same genus with particular taxonomic category.
Solved Examples: The Living World | NCERT Exemplar & Revision Notes for NEET

Q.2. Which one of the following aspects is an exclusive characteristic of living things?    (CBSE PMT’ 2011M)
(a) Isolated metabolic reactions occur in-vitro
(b) Increase in mass from inside only
(c) Perception of events happening in the environment and their memory
(d) Increase in mass by accumulation of material both on surface as well as internally
Ans: c
Solution:

All living things have an ability to respond to their environment, which is also called stimulation.

Q.3. Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described?    (CBSE PMT’2012M)
(a) Musca domestica – the common house lizard. A reptile
(b) Plasmodium falciparum – A protozoan pathogen causing the most serious type of malaria.
(c) Felis tigris – The Indian tiger, well protected in Gir forests.
(d) E. coli – Full name Entamoeba coli, a commonly occurring bacterium in human intestine.

Ans: c
Solution:
Plasmodium falciparum – A protozoan pathogen causes the most serious type of malaria that is falciparum malaria.
Musca domestica – House fly, an insect belonging to Arthropoda phylum.
Felis tigris – The Bengali tiger, well protected in Sunderbans (Tiger reserve).
E. coli – Full name Escherichia coli, a commonly occurring bacterium in human intestine.

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FAQs on Solved Examples: The Living World - NCERT Exemplar & Revision Notes for NEET

1. What is the definition of the living world?
Ans. The living world refers to the totality of living organisms on Earth, including plants, animals, and microorganisms. It encompasses all forms of life and their interactions with each other and their environment.
2. How is the living world classified?
Ans. The living world is classified into various hierarchical levels based on their similarities and differences. The broadest classification is the domain, followed by kingdom, phylum, class, order, family, genus, and species. This classification system helps in organizing and studying the vast diversity of life forms.
3. Why is understanding the living world important for NEET?
Ans. Understanding the living world is crucial for NEET (National Eligibility cum Entrance Test) as it forms the foundation for various biological concepts. Questions related to the living world are often asked in the NEET exam, and a strong understanding of this topic is essential to excel in the biology section of the exam.
4. How do living organisms interact with their environment?
Ans. Living organisms interact with their environment through various ways. They obtain energy and nutrients from their surroundings, excrete waste products, and reproduce to ensure the survival of their species. They also respond to external stimuli, adapt to changes in their environment, and play vital roles in maintaining the balance of ecosystems.
5. What are the major differences between plants and animals in the living world?
Ans. Plants and animals have several differences in terms of structure, function, and mode of nutrition. Plants are usually stationary, possess chlorophyll for photosynthesis, and have cell walls, while animals are mobile, lack chlorophyll, and have no cell walls. Plants obtain nutrients from the soil through their roots, while animals consume food and digest it internally. These differences contribute to the distinct roles and characteristics of plants and animals in the living world.
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