CBSE 2026 · Region 5 · Set 1 · Q9 · 1 mark
Choose a correct option that shows an interaction in which one species benefits while the other is neither harmed nor benefitted.
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Sea anemone and clownfish
Organisms and PopulationsPopulationsRemembermcqmedium
More from Organisms and Populations
- Study the given graphs (X) and (Y) depicting the annual variation in solar radiation on Earth from January to…2022 · asked 3×
- (i) Describe the population growth curve applicable in a population of any species in nature that has limited…2025 · asked 3×
- Read the following passage and answer the questions that follow: In nature, we rarely find isolated, single…2025 · asked 3×
- (i) Describe the Species-Area relationship as observed by Alexander von Humboldt, for a wide variety of taxa…2025 · asked 3×
- What is the carrying capacity of a species in a habitat? Explain the growth curve that takes this capacity…2026 · asked 3×
- (i) Write the observations made at the end of Connell's field experiment on barnacles on the rocky sea coasts…2022 · asked 3×
- The diagram below shows the distribution of two barnacle species, Chthamalus and Balanus on a rocky sea…2026 · asked 3×
- The graphs given below, A and B, represent population of elephants in two different National Parks (a…2022 · asked 3×
CBSE Class 12 Biology past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.