The association of animals when both partners are benefitted is

Options

A. Commensalism
B. Amensalism
C. Mutualism
D. Parasitism

Answer

To solve the question, "The association of animals when both partners are benefitted is," we will analyze the different types of symbiotic relationships and identify the correct one.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a type of association between animals where both partners benefit from the interaction.

2. **Identifying the Options**:
- **Commensalism**: In this type of relationship, one species benefits while the other is neither helped nor harmed. For example, remora fish attach to larger animals like whales, benefiting from their movement without affecting the whale.
- **Amensalism**: This interaction involves one species being harmed while the other remains unaffected. An example is the interaction between penicillin and bacteria, where penicillin harms bacteria but does not benefit from it.
- **Mutualism**: This is a mutual relationship where both partners benefit from each other. An example is the relationship between bees and flowers; bees collect nectar for food while pollinating the flowers.
- **Parasitism**: In this relationship, one organism (the parasite) benefits at the expense of the other (the host). An example is fleas or ticks living on dogs or cats, where fleas benefit while harming the host.

3. **Analyzing the Relationships**:
- Commensalism and amensalism do not fit the requirement since only one partner benefits in each case.
- Parasitism also does not fit because it involves harm to one of the partners.
- Mutualism is the only option where both partners benefit from the relationship.

4. **Conclusion**: The correct answer to the question is **Mutualism**, as it is the association where both partners benefit.

### Final Answer:
The association of animals when both partners are benefitted is **Mutualism**.

---