Symbiotic Relationships in Biology
Explore the different types of symbiotic relationships, including mutualism, commensalism, and parasitism, with this comprehensive Grade 12 biology worksheet.
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Symbiotic Relationships
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Read each question carefully and provide your best answer. This worksheet covers various aspects of symbiotic relationships in ecosystems.
1. Which type of symbiotic relationship benefits both organisms involved?
Commensalism
Parasitism
Mutualism
Competition
2. A remora fish attaches itself to a shark, feeding on scraps of food left by the shark. The shark is unaffected. What type of relationship is this?
Mutualism
Parasitism
Commensalism
Predation
3. In a parasitic relationship, one organism, the , benefits at the expense of the other organism, the .
4. Lichens are a classic example of , where a fungus and an alga live together, both benefiting from the association.
5. All symbiotic relationships involve direct physical contact between the interacting organisms.
True
False
6. Describe the key difference between mutualism and commensalism, providing an example for each.
Match each symbiotic relationship with its correct description.
7. Mutualism
a. One organism benefits, the other is harmed.
8. Commensalism
b. Both organisms benefit.
9. Parasitism
c. One organism benefits, the other is unaffected.