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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
During .............. typs of interaction, both organisms are benefited
- mutualism
- competition
- commensalism
- parasitism
Give the role of VAM related to soil fertility.
State Gause’s competitive exclusion principle.
Name important defence mechanisms in plants against herbivory.
Define the Stenothermal organisms.
Name and explain the interaction that is seen between clownfish and sea anemones.
With the help of a suitable diagram, describe the logistic population growth curve.
The cattle egret and grazing cattle in close association is a classic example of ______.
Define Absolute Mortality.
Define Niche.
Explain different population interactions with examples.
Define population growth. Explain different types of age pyramids.
Predation and parasitism are which type of interactions?
The relationship between sucker fish and shark is _________.
Statement I: If one or two species are lost, it may not affect proper functioning of ecosystem.
Statement II: Loss of key species causes serious threat to functioning of ecosystem. Choose the correct alternative with reference to the above statements
Identify the interspecific interaction depicted in the following figure.
The correct description for the interspecific interaction shown in the given figure is ______
Select the CORRECT match:
| I | II | ||
| i. | Competition | a. | Lichen |
| ii. | Commensalism | b. | Sea anemone and clownfish |
| iii. | Mutualism | c. | Lions and Leopards |
Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.
Identify the type of negative interaction.
Which of the following is NOT an example of mutualism?
With the decline in the population of fig species it was noticed that the population of wasp species also started to decline. What is the relationship between the two and what could be the possible reason for decline of wasps?
Amensalism is an association between two species where ______.
Which of the following is a partial root parasite?
Give one example for the following type.
Camouflaged animal
Give one example for the following type.
Predator animal
Discuss the various types of positive interactions between species.
Pick out the appropriate association representing brood parasitism.
The interaction between cattle egret and the buffalo is ______.
Match the Column I with Column II.
| Column I | Column II |
| A. Lichen | (i) Commensalism |
| B. Shark and Pilot fish | (ii) Mutualism |
| C. Barnacles on the back of a whale | (iii) Symbiotic obligatory relationship |
| D. Sharks and dolphins | (iv) Competition |
Complete the following chart regarding population interaction and re-write:
| Sr. No. | Name of interaction | Interaction between |
| 1. | ? | Plasmodium and Man |
| 2. | ? | Leopard and Lion |
| 3. | ? | Clownfish and Sea-anemone |
A bird laying its egg in the nest of another bird is the type of ______.
A Tight one-to-one relationship between many species of fig tree and certain wasps is an example of ______.
Observe the graph given below.
|
The graph represents inter-specific interaction between two species of Paramecia competing for the same resource in a culture medium. Paramecium caudatum and Paramecium aurelia were grown in separate cultures as well as in mixed cultures. It was found that each species grew in numbers according to the logistic equation.
|
a) Which species is competitively superior? Support it with the data provided in the graph.
b) State the underlying principle for the above result and name the scientist associated with this principle.
c) Explain the mechanism in which two or more species competing with each other can co-exist.
OR
Graphs A and B shown below depict interaction of two species. Which graph indicates Mutualism? Give reason.
 |
 |
| A | B |
What are the special adaptations that endoparasites show?
Mention the scientific name of protozoan parasite that causes Amoebiasis.
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.
Explain one type of mutualism.
Which one of the following statement INCORRECT regarding competition?
Association between clown fish and sea anemone is ______.
