enEnglishguગુજરાતી
NEET · Biology · STD 12 - 11. organisms and populations
If \('+'\) sign is assigned to beneficial interaction, \('-'\) sign to detrimental and \('O'\) sign to neutral interaction, then the population interaction represented by \('+'\, '-'\) refers to
- A mutualism
- B amensalism
- C commensalism
- D parasitism.
Answer & Solution
Correct Answer
(D) parasitism.
Step-by-step Solution
Detailed explanation
(d) Parasitism is an association in which one organism (the parasite) lives on (ectoparasitism) or in (endoparasitism) the body of another organism (host), from which it obtains its nutrients. This association is beneficial for the parasites as they get continuous supply of nutrients from their host and are able to rapidly multiply their numbers. But it is detrimental for the host organism as parasitic infection leads to various complications and diseases in the host body may also be fatal to him under certain circumstances.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Biology
- Which of the following flowers only once in its life-time?NEET 2018 Easy
- Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant \(DNA\) technology?NEET 2019 Easy
- The partial pressures (in \(\mathrm{mm}\, \mathrm{Hg}\) ) of oxygen \(\left(\mathrm{O}_{2}\right)\) and carbon dioxide \(\left(\mathrm{CO}_{2}\right)\) at alveoli (the site of diffusion) are:NEET 2021 Medium
- Which is the most common type of embryo sac in angiosperms ?NEET 2019 Easy
- Embryological support for evolution was disapproved byNEET 2020 Easy
- Given below are two statements: Statement \(I\): In \(\mathrm{C}_3\) plants, some \(\mathrm{O}_2\) binds to \(\mathrm{RuBisCO}\), hence \(\mathrm{CO}_2\) fixation is decreased. Statement \(II\): In \(\mathrm{C}_4\) plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration. In the light of the above statements, choose the correct answer from the options given below:NEET 2024 Medium
More PYQs from NEET
- Who is known as the father of Ecology in India?NEET 2025 Easy
- A solid cylinder of mass \(2\; kg\) and radius \(4 \;\mathrm{cm}\) is rotating about its axis at the rate of \(3\; \mathrm{rpm}\). The torque required to stop after \(2 \pi\) revolutions isNEET 2019 Hard
- Match List I with List II related to embryonic development at various months of pregnancy :
Choose the correct answer from the options given below :List I List II A. The foetus movement starts and hair appears on the head I.24weeks of pregnancy B. The foetus develops limbs and digits II.20weeks of pregnancy C. The foetus develops external genital organs III.8weeks of pregnancy D. The foetus body is covered with fine hair; eyelids separate and eyelashes are formed IV.12weeks of pregnancy NEET 2026 Hard - Match List \(I\) with List \(II\) :
Choose the correct answer from the options given below :List \(I\) List \(I\) \(A\) \(P\) wave \(I\) Heart muscles are electrically silent. \(B\) \(QRS\) complex \(II\) Depolarisation of ventricles. \(C\) \(T\) wave \(III\) Depolarisation of atria. \(D\) \(T-P\) gap \(IV\) Repolarisation of ventricles. NEET 2024 Medium - What type of ecological pyramid would be obtained with the following data?
Secondary consumer: \(120\,g\)
Primary consumer: \(60\,g\)
Primary producer: \(10\,g\)NEET 2018 Hard - Cytochromes are found inNEET 2015 Medium