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Organisms and Population
Flash cards
Page 2


Organisms and Population
Flash cards
Ramdeomisra  is revered as Father of Ecology in India.
•
Page 3


Organisms and Population
Flash cards
Ramdeomisra  is revered as Father of Ecology in India.
•
The key elements that lead to variatiomin the physical and 
chemical conditions of different habitats are 
temperature, water, light and soil.
•
Page 4


Organisms and Population
Flash cards
Ramdeomisra  is revered as Father of Ecology in India.
•
The key elements that lead to variatiomin the physical and 
chemical conditions of different habitats are 
temperature, water, light and soil.
•
The organisms that can tolerate and thrive in a wide range of 
temperature are called eurythermal and those that are
restricted to a narrow range of temperature arecalled
stenothermal
•
Page 5


Organisms and Population
Flash cards
Ramdeomisra  is revered as Father of Ecology in India.
•
The key elements that lead to variatiomin the physical and 
chemical conditions of different habitats are 
temperature, water, light and soil.
•
The organisms that can tolerate and thrive in a wide range of 
temperature are called eurythermal and those that are
restricted to a narrow range of temperature arecalled
stenothermal
•
The salinity in parts per thousand is< 5in inland water,30-
35in the sea and > 100 in some hypersalinelagoons.
•
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FAQs on Flashcards: Organisms and Population - Biology Class 12 - NEET

1. What are organisms and populations?
Ans. Organisms are individual living entities, such as plants, animals, and microorganisms, while populations are groups of organisms of the same species that live in the same area and can potentially interbreed.
2. How do organisms and populations interact?
Ans. Organisms within a population interact with each other through various activities like competition for resources, mating, and cooperation. These interactions influence the population's dynamics, such as growth, distribution, and diversity.
3. What factors affect population size?
Ans. Several factors can affect population size, including birth rates, death rates, immigration, and emigration. These factors collectively determine whether a population will increase, decrease, or remain stable over time.
4. How does competition impact populations?
Ans. Competition among organisms within a population can lead to limited access to resources like food, water, and shelter. This competition can influence population growth by affecting individuals' survival and reproductive success.
5. What are the different population growth patterns?
Ans. Population growth can follow various patterns, such as exponential growth and logistic growth. Exponential growth occurs when a population grows rapidly without any limitations, while logistic growth occurs when a population reaches its carrying capacity and growth slows down due to resource limitations.
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