Q2.2. Which species are competitively dominant over Acorn Barnacles? Gooseneck Barnacles Mussels Both Gooseneck Barnacles and Mussels Neither Gooseneck Barnacles nor Mussels Check Answer
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Madhur L.
Q5.1. Recall that some species in the intertidal zone are mobile, while others are sessile (stationary), and this affects how individuals compete with each other. Which of the following compete for space on intertidal rocks? A) Algae and Starfish B) Mussels, Whelk, and Chiton C) Algae and Barnacles D) Whelk and Starfish Q5.2. The illustration below is a food web diagram for a subset of the ecological community surrounding Arctic sea ice. Based only on the diagram and assuming it is complete for these species, which of the statements below is FALSE? [Diagram] A) Seals are eaten by polar bears B) Crustaceans are eaten by cod C) Cod are eaten by seals and polar bears D) Algae and phytoplankton are eaten by crustaceans
Adi S.
In this experiment, two barnacle species are hypothesized to be competing with each other. Semibalanus was removed from the lower part of the rocky habitat shown on the left. In response, Chthamalus grew in all of the open space that Semibalanus left. Which of the following statements is a valid conclusion of this experiment? Chthamalus was outcompeting Semibalanus in the lower intertidal zone when both species were present together Semibalanus was outcompeting Chthamalus in the lower intertidal zone when both species were present together The two species of barnacles do not compete with each other Semibalanus and Chthamalus have a mutualistic interaction.
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