Assignment 08

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School

Texas State University *

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1321

Subject

Biology

Date

Apr 27, 2024

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docx

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3

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Assignment 8 1. What benefit do you think Anabaena obtains by living within the body of the water fern Azolla? a. I think the benefits would be protection, Nutrients exchange, increased growth, carbon dioxide uptake, and oxygen production. 2. What benefit might the fern obtain from the relationship? a. I think the fern may have better froth, and the benefit from the nutrients exchange. 3. What type of symbiosis do you think exists between Anabaena and Azolla? a. It is an example of mutualism, a type of symbiosis in which both participating organisms’ benefit. 4. How does the fungal component of a lichen benefit from its relationship with the algae? a. Nutrients Acquisition, Protection and moisture, increased habitat range, mineral uptake, and reproductive structures. 5. How does the algal component of a lichen benefit from its relationship with the fungus a. Protection and support, nutrient availability, access to moisture, stable microenvironment, carbon compounds. 6. What type of symbiotic relationship is represented by a lichen? a. Mutualism. 7. How does a termite benefit from having zooflagellates living in its gut? a. Cellulose Digestion, Nutrients, Energy production, synergistic relationship, enhanced survival. 8. How do zooflagellates benefit from living inside the gut of a termite? a. Protected Environment, steady food source, access to plant cell wall material, nitrogen recycling, protection from predation. 9. What type of symbiotic relationship is represented by termites and their zooflagellates?
a. Mutualism. 10. If you watch some water bears under the microscope, you will see that they seem to spend their time feeding on bits and pieces of dead and dying plant material. Given this information, explain what kind of symbiotic association exists between the ball moss plant and its tardigrades. a. The relationship between the ball moss plant and its tardigrades, or water bears, can be described as commensalism. In this type of relationship: b. The tardigrades benefit from the association by feeding on dead and decaying plant material, which serves as a food source for them. c. The ball moss plant is not significantly affected by the presence of the tardigrades, meaning it neither benefits nor is harmed by their presence 11. How does a legume benefit from having rhizobia living in its root nodules a. Nitrogen Fixation, Increased Nitrogen availability, nutrient enrichment, reduced dependency on synthetic fertilizers, enhanced plant health, drought and stress tolerance. 12. Do a little bit of online research and explain how rhizobia benefit from living within the root nodules of legumes. a. Safe home, food supply, nitrogen conversion, reproduction, specialization 13. What type of symbiotic relationship is represented by legumes and rhizobia? a. Mutualism. 14. What type of symbiotic relationship exists between humans and the Chagas disease organism? a. The relationship between humans and the parasite causing Chagas disease is a harmful one. The parasite benefits by living
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