Lemur and Spotted cuscus exhibit

Options

A. Convergent evolution
B. Homology
C. Analogy
D. Hybridisation.

Answer

### Step-by-Step Solution:

1. **Understanding the Organisms**:
- Identify the two species in question: Lemur and Spotted Cuscus.
- Note that Lemurs are primarily found in Madagascar and belong to the group of placental mammals, while Spotted Cuscus is found in Australia and belongs to marsupials.

2. **Defining Key Terms**:
- **Convergent Evolution**: This is when unrelated species evolve similar traits or adaptations due to similar environmental pressures or ecological niches.
- **Homology**: This refers to similarities in structure due to shared ancestry, leading to divergent evolution where related species adapt differently to their environments.
- **Analogy**: This refers to similarities in function or appearance that arise independently in different species, often due to similar environmental challenges.
- **Hybridization**: This is the process of mating between different species or varieties, which is not relevant to the question.

3. **Analyzing the Adaptations**:
- Both Lemurs and Spotted Cuscus have adaptations that allow them to climb trees effectively, which is an arboreal adaptation.
- Despite their different evolutionary backgrounds (placental vs. marsupial), they have developed similar traits to thrive in similar environments.

4. **Conclusion**:
- Since Lemurs and Spotted Cuscus are unrelated species that have developed similar adaptations due to their environments, they exemplify **convergent evolution**.

### Final Answer:
Lemur and Spotted Cuscus exhibit **convergent evolution**.

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