The evolution resulting in the formation of new species is known as

Options

A. microevolution
B. macroevolution
C. megaevolution
D. (1) and (2)

Answer

To answer the question, "The evolution resulting in the formation of new species is known as," we will follow these steps:

### Step-by-Step Solution:

1. **Understanding Evolution**:
- Evolution is the process through which species change over time. It can occur on different scales.

2. **Microevolution vs. Macroevolution**:
- **Microevolution**: This refers to small-scale evolutionary changes that occur within a single population. It involves changes in allele frequencies and can lead to adaptations within a species but does not result in the formation of new species.
- **Macroevolution**: This refers to large-scale evolutionary changes that occur over long periods of time, transcending the boundaries of a single species. It includes the formation of new species (speciation) and major evolutionary developments.

3. **Examples of Macroevolution**:
- The origin of eukaryotic life forms.
- The evolution of humans.
- The emergence of new species from common ancestors.
- Extinction events that lead to the rise of new species.

4. **Conclusion**:
- Based on the definitions and examples provided, the evolution resulting in the formation of new species is known as **macroevolution**.

### Final Answer:
The evolution resulting in the formation of new species is known as **macroevolution**.

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