Have students read statements and identify types of ecological interactions.Give each student a copy of the Symbiotic Interactions worksheet. While the plant provides shelter and food for the ants, the ants actually defend the plant from organisms such as other herbivores that may eat the plant, as well as remove any other species of plants that may limit the plants growth. Examples are, respectively, yucca plants and yucca moths, dung beetles and the dung of other animals, and fleas and their hosts. This relationship is so important, that if this mutualistic relationship did not exist, it would be very likely coral reefs would not even exist. These symbiotic relationships exist all throughout the animal kingdom, including in the ocean. symbiotic relationships in the arctic ocean Meanwhile, the fungal counterpart helps protect the alga by getting minerals from substrate and retaining water. Did you love learning about ocean marine life? Examples of this type of parasite are: ticks, mites, leeches, and roundworms. Julie Brown, National Geographic Society, 2010 National Teacher Leadership Institute: Oceans. Parasites can kill some of their hosts or make them vulnerable to other species. 1. We all have to get along with our neighbors. . relationship between organisms where one organism benefits from the association while not harming the other. Introduce the activity using a KWL chart.Provide each student with a copy of the Marine Ecology Video Scavenger Hunt worksheet and divide them into groups of four. Ask students to orally explain why they labeled each mutualism, commensalism, or parasitism. Shrimp in Featherstar by prilfish under Flickr. Angela M. Cowan, Education Specialist and Curriculum Designer, Elizabeth Wolzak, National Geographic Society This relationship benefits both of these species because the greenish-brown algae live on the spiders back, which helps the spider crab blend into the shallow areas of the ocean floor where they live. Show students the four videos and have them complete the Video Scavenger Hunt worksheet.Read aloud the directions for the worksheet. A more specific example of obligate mutualism that is more related to this topic would be the relationship between hard coral and algae (zooxanthellae). relationship between organisms where one organism (a parasite) lives or feeds on the other, usually causing harm. In small groups or as a whole class, address student questions.2. Virtually all microbes in the ocean interact to some degree, physically or energetically. Tell them that they should be able to provide reasons for their choices. Also known as the midnight or bathypelagic zone. 2: The Arctic Ecosystem - The Arctic The Arctic isnt the friendliest environment for vegetation to grow, which is why the animals of that environment have limited options regarding food. These are just a few of the many mutualistic relationships in our ocean. The shrimp or cleaning fish remove materials, such as parasites, off of the larger marine organisms, in which they get a meal from, and the larger marine organisms have potentially harmful parasites removed! Use a National Geographic image to explore commensalism and discuss the origins of Crittercam.Display the image lemon shark in the resource carousel and have students observe it closely. The mutualistic relationship between anemones and clownfish is also another commonly known relationship. She is a PADI Rescue Diver with a goal to dive in all the best places around the Philippines. Sarah Wilson, National Geographic Society, Elizabeth Wolzak, National Geographic Society
