Which of the following is a partial root parasite ?
- Sandal wood
- Mistletoe
- Orobanche
- Ganoderma
The Correct Option is A
Solution and Explanation
Top Questions on organisms and populations
- What do ‘a’ and ‘b’ represent in the following population growth curve?
- NEET (UG) - 2024
- Biology
- organisms and populations
Match List I with List II.
List I (Interacting species)
List II (Name of interaction)
A Leopard and a Lion in a forest/grassland I Competition B A Cuckoo laying egg in a Crow’s nest II Brood parasitism C Fungi and root of a higher plant in Mycorrhizae III Mutualism D A cattle egret and a Cattle in a field IV Commensalism Choose the correct answer from the options given below
- NEET (UG) - 2023
- Biology
- organisms and populations
Match List I with List II:
List I (Interaction) List II (Species A and B) A. Mutualism I. +(A), O(B) B. Commensalism II. –(A), O(B) C. Amensalism III. +(A), –(B) D. Parasitism IV +(A), +(B) Choose the correct answer from the options given below:
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- Biology
- organisms and populations
- Match List I with List II.Choose the correct answer from the options given below:
List I
List II
A Logistic growth I Unlimited resource availability condition B Exponential growth II Limited resource availability condition C Expanding age pyramid III The percent individuals of pre-reproductive age is largest followed by reproductive and post reproductive age groups D Stable age pyramid IV The percent individuals of pre-reproductives and reproductive age group are same - NEET (UG) - 2023
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- In the exponential growth model equation
\( dN/dt = rN \)
'N' stands for:- CUET (UG) - 2023
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Notes on organisms and populations
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Concepts Used:
Organisms and Populations
Organisms:
An attached living system that lives in an environment is commonly known as an organism. These organisms are able to retain certain behaviors and structures. Some examples of organisms are plants, animals, bacteria, fungi, and humans. A group of these organisms leads to the formation of a population. The collection of the population forms a community that assists in the operation of ecosystems.
Each and every organism has the ability to adapt itself to various conditions of the environment. This capacity of organisms is due to their genetic variations. It is due to this only that their probability of survival get increases. For instance, camels adapt themselves to survive in desert areas and polar bears adapt to the extreme cold conditions or situations through their dense fur coat.
Populations:
A collection of organisms or individuals of a species that live, at a specific time, in a geographical area that is well-defined and capable of interbreeding is described as a population.
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