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Byju's Answer
Standard XII
Biology
Population Interactions
Which one of ...
Question

Which one of the following is most appropriately defined?

A
Parasite is an organism which always lives inside the body of other organism and may kill it.
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B
Host is an organism which provides food to another organism.
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C
Amensalism is a relationship in which one species is benefited whereas the other is unaffected.
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D
Predator is an organism that catches and kills other organism for food.
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Solution

The correct option is D Predator is an organism that catches and kills other organism for food.
Predator is an organism that hunts, catches, kills, and eats other animals. Parasitism is a type of symbiosis where one organism (the parasite) benefits and the other (the host) is harmed. A host is an organism that harbors a parasite, or a mutual or commensal symbiont, providing nourishment and shelter. Amensalism is an association between organisms of two different species in which one is inhibited or destroyed and the other is unaffected.

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Q. Which of the following statement(s) is incorrect?
I. In amensalism, one species is benefitted while the other is unaffected.
II. Predator is an organism that catches and kills the other organism for food.
III. Mutualism is a type of population interaction in which both the species are harmed.
Q. Consider the following statements.
1. In predation, one organism kills other and benefits itself.
2. In parasitism, one species inhibits the other and benefits itself.
3. In amensalism, one species harms the other and benefits itself.
Which of the statements given is/are correct?
Q. Which of the following statements regarding species interdependence are true?
A. An association of two species where one is benefited and other remains unaffected is called mutualism.
B. An interspecific association where both partners derive benefit from each other is called commensalism.
C. A direct food relation between two species of animals in which one animal kills and feeds on another is referred as predation.
D. A relationship between two species of organism where both the partners are benefited from each other is called as symbiosis.
Q. Select the statement which explains best parasitism.
(a) One organism is benefited.
(b) Both the organisms are benefited.
(c) One organism is benefited, other is not affected.
(d) One organism is benefited, other is affected.
Q.

Select the statement which best explains parasitism.

(a) One organism is benefited.

(b) Both the organisms are benefited.

(c) One organism is benefited, other is not affected.

(d) One organism is benefited, other is affected.

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