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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Give one example of the following type. Chemical defense agent

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प्रश्न

Give one example for the following type.

Chemical defense agent

एक शब्द/वाक्यांश उत्तर
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उत्तर

Chemical defense agent - Cardiac glycosides produced by calotropis

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पाठ 13: Organisms and Populations - SHORT ANSWER [पृष्ठ ९४]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
पाठ 13 Organisms and Populations
SHORT ANSWER | Q 17.f | पृष्ठ ९४

व्हिडिओ ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्‍न

Give the role of VAM related to soil fertility.


What is mutualism?


Write what do phytophagous insects feed on.


Name the two intermediate hosts which the human liver fluke depends on to complete its life cycle so as to facilitate parasitization of its primary host.


Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.


How absolute Natality differs from Realized Natality


Identify the interspecific interaction in which species A is harmed and species B is unaffected.


Which of the following is NOT an example of mutualism?


Which one of the following is an example of predation?


Which one of the following is NOT an example of mutualism?


What is mycorrhiza?


Give one example for the following type.

Predator animal


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

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

Which interaction type is characterized by both species being benefited?


In predation, what is the relationship between the predator and prey?


Tall plants blocking sunlight for smaller nearby plants is an example of which population interaction?


What is the sign convention for neutralism?


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