Advertisements
Advertisements
Question
What is homeostasis?
Advertisements
Solution
Property of self-regulation and tendency to maintain a steady state within an external environment which is liable to change is called Homeostasis. It is essential for the living organisms.
APPEARS IN
RELATED QUESTIONS
Apart from being a part of the food chain, predators play other important roles. Mention any two such roles supported by examples.
Describe the mutual relationship between fig tree and wasp and comment on the phenomenon that operates in their relationship.
Define mutualism.
Using '-' to depict inhibition and '+' to depict benefit, mutualism between two species can be represented as ____________.
______ is the adaptation of an organism i which it matches its colour with its surroundings to get protected from predators.
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 ____________.
Identify the type of negative interaction.
Which of the following is NOT an example of mutualism?
Which one of the following pair does NOT show commensalism?
A protozoan living in the digestive tract of a flea that lives on a dog is an example of ______
Define stenohaline species.
What is mycorrhiza?
Give one example for the following type.
Predator animal
Give one example for the following type.
Chemical defense agent
Fill in the blanks
| Species A | Species B | Type of Interaction | Example |
| + | - | ______ | ______ |
| + | + | ______ | ______ |
| + | 0 | Commensalism | ______ |
Pick out the appropriate association representing brood parasitism.
Write the observations made at the end of Connell's field, experiment on barnacles on the rocky sea coasts of Scotland.
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 |
