Question

In laboratory experiments, two species of the protist

Paramecium were grown alone and in the presence of the other species. The following graphs show growth of species 1 (left) and species 2 (right), both alone and when in mixed

culture.

Interpretation of these graphs shows that –

• A. Competitive exclusion occurred in these experiments
• B. Both species are affected by interspecific competition but species 1 is affected less.
• C. Both species are affected by interspecific competition but species 2 is affected less
• D. Both species are affected equally by interspecific competition

Answer 1

Answer: (C)

Both species are affected by interspecific competition but species 2 is affected less