Which of the Following Compete for Space on Intertidal Rocks?

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Revised Biology Questions & Answers

Q. Which of the Following Compete for Space on Intertidal Rocks?

  1. Algae, mussels, and whelk
  2. Algae and mussels
  3. Whelk and chiton
  4. jellyfish only

ANSWER: 2. Algae and mussels

ANSWER IN DETAIL

The intertidal zone is the area between the high and low tide marks. It is also known as the seashore or foreshore. This zone is rich in plant and animal life, and it is constantly changing as the tides ebb and flow.

The Rocks in the intertidal zone are covered with algae, barnacles, and mussels. These organisms compete for space on the rocks. The barnacles attach themselves to the rocks and filter food from the water.

The mussels anchor themselves to the rocks with their strong byssal threads. They filter food from the water and trap detritus. The algae grow in thin layers on the rocks and produce their own food through photosynthesis.

When the tide is high, these organisms are submerged in water. When the tide is low, they are exposed to the air. The intertidal zone is a dynamic environment that is constantly changing.

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