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

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. - Biology

Advertisements
Advertisements

प्रश्न

Select the statement which explains best parasitism.

विकल्प

  • One organism is benefited.

  • Both the organisms are benefited.

  • One organism is benefited, other is not affected.

  • One organism is benefited, other is affected.

MCQ
Advertisements

उत्तर

One organism is benefited, other is affected.

Explanation:

Parasitism is an interaction between two species in which one species (parasite) derives benefit while the other species (host) is harmed. For example, lice (parasites) on the human body and ticks on dogs represent this interaction, where the parasites receive benefits (as they derive nourishment by feeding on the blood of humans). On the other hand, these parasites reduce host fitness and harm the human body.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 15: Organisms and Populations - NCERT EXERCISES [पृष्ठ ६१६]

APPEARS IN

नूतन Biology [English] Class 12 ISC
अध्याय 15 Organisms and Populations
NCERT EXERCISES | Q 14. | पृष्ठ ६१६

वीडियो ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्न

Give the role of VAM related to soil fertility.


State Gause’s competitive exclusion principle.


How is mutualism different from commensalism?


The cattle egret and grazing cattle in close association is a classic example of ______.


How absolute Natality differs from Realized Natality


What is population ecology?


What is Mortality? What are its two types?


Define Niche. 


Using '-' to depict inhibition and '+' to depict benefit, mutualism between two species can be represented as ____________.


Which principle/theory states that 'Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior will be eliminated eventually.'?


Select the CORRECT match:

  I   II
i. Competition a. Lichen
ii. Commensalism b. Sea anemone and clownfish
iii. Mutualism c. Lions and Leopards

Parasitism can be conectly represented as ____________.


Lichens showing relationship between alga and fungus is an example of ____________ type of interaction.


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


Substantiate by giving two reasons as to why a holistic understanding of the flora and fauna the cropland is required before introducing an appropriate biocontrol method.


Mycorrhizae are the example of ______.


In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?


Amensalism is an association between two species where ______.


What is the interaction between two species called?


What is homeostasis?


Define ectoparasite and endoparasite and give suitable examples.


Sea Anemone gets attached to the surface of the hermit crab. The kind of population interaction exhibited in this case is ______.


The value of 'Z' (regression coefficient) lies in the range of ______ regardless of the taxonomic group or the region.


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

A Tight one-to-one relationship between many species of fig tree and certain wasps is an example of ______.


"Abingdon tortoise in Galapagos islands became extinct within a decade on introduction of goats in the island." Explain giving reason.


"Some species of insects and frogs have evolved with various specific features that help them from being detected."

  1. Justify the statement giving reasons.
  2. Mention any two such features.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×