Living in the sea 0 Overview Connecting to the Curriculum Marking Student Responses Question Image source: www.virtualoceania.net.nz Why do sea mammals, like whales and dolphins, have to come up to the surface of the sea more often than fish? To feed on plankton and small fish They need sunlight to remain healthy To breathe air They escape predators, like sharks, by surfacing To find out where they are Question Image source: www.fish.govt.nz (July 2004) Fish need oxygen to live. They get most of this from ... swallowing oxygen bubbles in the water. eating water plants. sucking oxygen trapped in rocks and sand. oxygen dissolved in the water. air at the surface of the water. Level: 3 Curriculum info: Science, Knowledge, Living World Keywords: Life processes, respiration, marine mammals, fish Description of task: Task: complete two multiple choice questions. Assessment focus: respiration of marine mammals and fish. Answers/responses: Y6 (07/97) Y7 (07/97) a) C - To breathe air very easy very easy b) D - oxygen dissolved in the water. moderate -
