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प्रश्न
Define the following term:
Camouflage
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उत्तर
Camouflage, also called cryptic colouration, is a defense mechanism or tactic that organisms use to disguise their appearance, usually to blend in with their surroundings. Organisms use camouflage to mask their location, identity, and movement.
संबंधित प्रश्न
An orchid plant is growing on the branch of a mango tree. How do you describe this interaction between the orchid and the mango tree?
What is the ecological principle behind the biological control method of managing with pest insects?
Define the following term:
Commensalism
Mention any two examples where the organisms involved are commercially exploited in agriculture.
Competition and Mutualism.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
What is the ecological process behind the biological control method of managing pest insects?
Define population.
The number of deaths under ideal conditions is known as ______.
Define population growth. Explain different types of age pyramids.
Mutualism can be represented as the interaction between ____________.
Identify the correct pair that exhibits commensalism.
The correct description for the interspecific interaction shown in the given figure is ______
Identify the interspecific interaction which one species is benefited and other is neither banned nor benefited.
Which of the following is TRUE for amensalism?
Parasitism can be conectly represented as ____________.
Cattle egrets always foraging close to the grazing cattle is an example of ____________.
Lichens showing relationship between alga and fungus is an example of ____________ type of interaction.
In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?
Define stenohaline species.
What is the interaction between two species called?
What are the organisms that feed on plant sap and other plant parts called?
In a pond, we see plants which are free-floating; rooted–submerged; rooted emergent; rooted with floating leaves; Write the type of plant against the following examples.
| Plant Name | Type | |
| a. | Hydrilla | ______ |
| b. | Typha | ______ |
| c. | Nymphaea | ______ |
| d. | Lemna | ______ |
| e. | Vallisneria | ______ |
In an association of two animal species, one is a termite which feeds on wood and the other is a protozoan Trichonympha present in the gut of the termite. What type of association they establish?
While living in and on the host species, the animal parasite has evolved certain adaptations. Describe these adaptations with examples.
Write the observations made at the end of Connell's field, experiment on barnacles on the rocky sea coasts of Scotland.
The interaction between cattle egret and the buffalo is ______.
A bird laying its egg in the nest of another bird is the type of ______.
Many copepods live on the body surface of marine fish. This relationship is an example of ______.
The diagram given below shows the life cycle of a malarial parasite. Study it carefully and answer the questions that follows:
- Name the hosts in which the asexual phase and sexual phase of the life cycle takes place.
- Identify the infective stage labelled ‘D’.
- Name the structure labelled ‘A’ and ‘E’.
- Give any one symptom of malaria.
Describe mutualism.
Explain one type of mutualism.
Given below are two statements.
Statement I - The amount of energy available in an ecosystem increases at each successive trophic level.
Statement II - Transfer of energy from one trophic level to the other follows 10% law.
In light of the above statements, select the correct option given below.
Statement I - Calotropis growing in abandoned fields is never consumed by cattle and goats.
Statement II - Calotropis produces highly poisonous cardiac glycosides.
In light of above statements, select the most appropriate answer from the option given below.
