NEET 2016 · Class 12

Organisms and Populations

If '+' sign is assigned to beneficial interaction, '-' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '-' refers to

  1. (A)parasitism
  2. (B)mutualism
  3. (C)amensalism
  4. (D)commensalism

The NCERT line that answers it

Verbatim line

Depending on the outcome, these interactions between two species are classified as competition (both species suffer), predation and parasitism (one benefits and the other suffers), commensalism (one benefits and the other is unaffected), amensalism (one is harmed, other unaffected) and mutualism (both species benefit).

Chapter
Organisms and Populations
Section
11.1.4 Population Interactions
Page
15
Words matched
44 of 44

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

8333, emb=0.9037, combined=0.8756). Verified: high — The span explicitly states that in parasitism 'one benefits and the other suffers', which directly corresponds to the '+' '-' notation in the question.

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