The development of adaptations along parallel lines in unrelated group of animals is

Options

A. Adaptive convergence
B. Adaptive radiation
C. Adaptive divergence
D. Adaptive induction

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the development of adaptations along parallel lines in unrelated groups of animals. This concept is known as "convergent evolution."

2. **Defining Convergent Evolution**: Convergent evolution occurs when different species develop similar traits or adaptations in response to similar environmental challenges, despite not being closely related. This phenomenon highlights how similar environmental pressures can lead to similar adaptations in different species.

3. **Examples of Convergent Evolution**: A classic example is the evolution of wings in bats (mammals) and birds (aves). Both have developed wings to enable flight, but they evolved from different ancestral lineages.

4. **Importance of Adaptations**: Adaptations are crucial for the survival of species in their respective environments. They can include physical traits (like body shape or color) or behavioral traits (like migration patterns).

5. **Conclusion**: The development of adaptations along parallel lines in unrelated groups of animals is termed "convergent evolution." This concept illustrates how different species can evolve similar traits when faced with similar ecological niches or challenges.

---