NEET Exam > NEET Videos > Crash Course for NEET > Organisms and Population
Organisms and Population Video Lecture | Crash Course for NEET
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FAQs on Organisms and Population Video Lecture - Crash Course for NEET
| 1. What is the definition of an organism? |  |
Ans. An organism is a living entity that can carry out basic life functions, such as reproduction, growth, and responding to stimuli. It can be a single-celled organism, like bacteria, or a complex multicellular organism, like a human.
| 2. How are populations defined in biology? | |
Ans. In biology, a population refers to a group of organisms of the same species that live in the same area and can potentially interbreed. Populations are important units of study as they allow scientists to understand how species interact, evolve, and adapt to their environment.
| 3. What factors can influence the size of a population? | |
Ans. Several factors can influence the size of a population, including birth rate, death rate, immigration (incoming individuals), and emigration (outgoing individuals). These factors, along with the availability of resources, competition, predation, and environmental conditions, can determine whether a population grows, declines, or remains stable.
| 4. How do organisms interact within a population? | |
Ans. Organisms within a population can interact in various ways. They may compete with each other for resources such as food, mates, or territory. They can also cooperate, for example, by forming social groups or engaging in mutualistic relationships. Additionally, organisms may exhibit behaviors to attract mates, establish dominance, or defend against predators.
| 5. What are some examples of population dynamics? | |
Ans. Population dynamics refer to the changes in population size over time. Some examples include population growth, where the number of individuals increases rapidly, and population decline, where the number of individuals decreases. Other dynamics include cyclic fluctuations, where population size oscillates periodically, and stable populations, where the number of individuals remains relatively constant due to a balance between birth and death rates.
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Nov 22, 2024 Last updated |
Video Description: Organisms and Population for NEET 2024 is part of Crash Course for NEET preparation.
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