Which of the following have species that can establish symbiotic relationship with other organisms? 1. Cnidarians 2. Fungi 3. Protozoa Select the correct answer using the codes given below.
Explanation
* Cnidarians: Many cnidarian species, such as corals, develop symbiotic relationships with single-celled algae called zooxanthellae. This symbiosis is crucial for the survival and growth of coral reefs.
* Fungi: Fungi are known to form various symbiotic relationships with other organisms, including * Mycorrhizal associations with plant roots, where the fungus helps the plant absorb nutrients in exchange for carbohydrates. * Lichens are a symbiotic relationship between a fungus and an algae or cyanobacteria.
* Protozoa: Some protozoa living in the digestive tracts of termites and ruminant animals, helping them break down cellulose.
Therefore, all three groups - cnidarians, fungi, and protozoa - have species that can form symbiotic relationships with other organisms.