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Who dominates on the rocky sea coasts of Scotland?

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in Biology – Class 12 by (271k points)
Who dominates on the rocky sea coasts of Scotland?

(a) Shark

(b) Aquatic plants

(c) Larger and competitively superior barnacle Balanus

(d) Smaller barnacle Chathamalus

I have been asked this question by my school teacher while I was bunking the class.

Question is from Population Interactions-4 in portion Organisms and Populations of Biology – Class 12

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The correct option is (c) Larger and competitively superior barnacle Balanus

The explanation: The larger and competitively superior barnacle BalanusI dominates the rocky coasts of Scotland. Due to this the smaller barnacle Chathamalus is excluded from that zone. It is an example of ‘competitive release’ which was shown by Connell’s elegant field experiments.

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