Question
Q30. Which of the following have species that can establish a symbiotic relationship with other organisms ?
1. Cnidarians
2. Fungi
3. Protozoa
Select the correct answer using the code given below.
A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1,2 and 3
Answer: D
Detailed Explanation
Explanation:
· Cnidarians, also called coelenterate, are mostly marine animals. They include the corals, hydras, jellyfish, etc.
· The relationship between cnidarians and dinoflagellate algae is termed as “symbiotic”, because both the animal host and the algae are benefiting from the association.
· It is a mutualistic interaction.
· Fungi have several mutualistic relationships with other organisms. In mutualism, both organisms benefit from the relationship.
· Two common mutualistic relationships involving fungi are mycorrhiza and lichen.