#species interactions

BOTANY

Which of the following best describes resource partitioning?

Resource partitioning allows species to coexist by utilizing different parts of a resource, reducing direct competition. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Botany section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Botany portion (Latest NCERT Textbooks for Academic Session 2026-27 -

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Population Interactions - Mutualism and Amensalism

Which of the following interactions involves one species being harmed while the other remains unaffected?

In amensalism, one species is negatively affected while the other is neither harmed nor benefited.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism

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Population Interactions - Mutualism and Amensalism

Which of the following species interactions is beneficial to both species involved?

In mutualism, both species benefit from their interaction, as seen in pollinators and flowering plants.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism

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Population Interactions - Mutualism and Amensalism

Which of the following statements about species interactions is correct?

Mutualism is an interaction in which both species benefit, such as pollination.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism

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Population Interactions - Mutualism and Amensalism

Which of the following is an example of amensalism?

Amensalism occurs when one species is harmed while the other remains unaffected, as seen in Penicillium inhibiting bacterial growth.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism

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Population Interactions - Mutualism and Amensalism

Which of the following is an incorrect statement about mutualism?

Mutualism is a symbiotic relationship in which both species benefit, unlike parasitism, where one species is harmed.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism

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Population Interactions - Mutualism and Amensalism

Which of the following is an example of mutualism?

Mutualism benefits both species, such as in lichen where fungi provide structure and algae perform photosynthesis.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism

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Population Interactions - Mutualism and Amensalism

Which of the following species interactions benefits both species?

In mutualism, both species benefit from the interaction, such as pollinators and flowering plants.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism

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Population Interactions - Mutualism and Amensalism

Which type of species interaction is most important for pollination?

Mutualism benefits both species, such as pollinators receiving nectar while aiding plant reproduction.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Mutualism and Amensalism

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Population Interactions - Parasitism and Commensalism

Which of the following correctly defines ecological niche?

An ecological niche refers to an organism’s functional role, interactions, and resource utilization in an ecosystem.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Parasitism and Commensalism

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Population Interactions - Parasitism and Commensalism

Which of the following interactions involves one species benefiting while the other remains unaffected?

Commensalism is a relationship where one species benefits while the other is neither harmed nor helped.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Parasitism and Commensalism

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Population Interactions - Parasitism and Commensalism

Which of the following species interactions is similar to predation?

Parasitism, like predation, benefits one species while harming the other, but parasites do not immediately kill their host.

Ref: NCERT Class 12 Biology Chapter 11: Organisms and Populations Population Interactions - Parasitism and Commensalism

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