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प्रश्न
What is brood parasitism? Explain with the help of an example.
Explain Brood parasitism with the help of a suitable example.
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उत्तर
- Brood parasitism is a reproductive technique used by some bird species in which one bird, known as the brood parasite, lays eggs in the nest of another bird species, known as the host. The host bird then incubates and nurtures the eggs as if they were its own, frequently to the detriment of its own young.
- The conduct of the common cuckoo is an excellent example of brood parasitism. Female cuckoos lay their eggs in the nests of other bird species, including crows. Cuckoo eggs closely resemble the host's eggs, making it less likely that the host will discover the incursion. The parasite bird's eggs have developed to mimic the host's egg in size and colour over time, reducing the likelihood of the host bird recognising and ejecting the foreign eggs from the nest.
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संबंधित प्रश्न
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
The number of deaths under ideal conditions is known as ______.
Define mutualism.
Using '-' to depict inhibition and '+' to depict benefit, mutualism between two species can be represented as ____________.
The correct description for the interspecific interaction shown in the given figure is ______
Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.
______ in birds is an interesting example of parasitism in which the parasitic bird lays its eggs in the nest of its host and the host incubates them.
Which one of the following is one of the characteristics of a biological community?
An interaction favourable to both population but no obligatory to either is ______.
What is mycorrhiza?
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
Observe the set of 4 figures A, B, C and D and, answer the following questions
- Which one of the figures shows mutualism?
- What kind of association is shown in D?
- Name the organisms and the association in C.
- What role is the insect performing in B?
 Fig. (A) |
 Fig. (B) |
 Fig. (C) |
 Fig. (D) |
In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause’s Principle, one of the species is to be eliminated in due course of time, but both are surviving well in the aquarium. Give possible reasons.
Write a note on parasitism.
Give one example of parasitism.
Statement I: Gause’s competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement II: According to Gause’s principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements, choose the correct answer from the options given below:
What is the sign convention for amensalism?
Tall plants blocking sunlight for smaller nearby plants is an example of which population interaction?
