Choose the correct match from the following .

Options

A. Giraffes with long necks - Lamarck
B. Branching descent - Malthus
C. Mutation cause speciation - Darwin
D. Inheritance factors influence phenotype - de Vries

Answer

To solve the question of matching the correct biological concepts with their respective theorists, we will analyze each option provided and determine the correct match.

### Step-by-Step Solution:

1. **Analyze the First Option: Giraffe with Long Neck - Lamarck**
- Lamarck proposed that organisms adapt to their environment through use and disuse of organs. He suggested that giraffes had ancestors with shorter necks, and over time, as they stretched their necks to reach higher branches for food, their necks became longer. This idea aligns with Lamarck's theory of inheritance of acquired characteristics.
- **Conclusion**: This match is correct.

2. **Analyze the Second Option: Branching Descendant - Malthus**
- The concept of branching descent, which states that species evolve from common ancestors, is attributed to Charles Darwin. Malthus is known for his theories on population growth and its relation to resources, not for branching descent.
- **Conclusion**: This match is incorrect.

3. **Analyze the Third Option: Mutation Causes Speciation - Darwin**
- Darwin is known for his theory of natural selection, not for the mutation theory. The concept that mutations lead to speciation is attributed to Hugo de Vries, who proposed that mutations are sudden changes that can lead to new species.
- **Conclusion**: This match is incorrect.

4. **Analyze the Fourth Option: Inheritance Factor Influence the Phenotype - de Vries**
- While Hugo de Vries did contribute to the understanding of mutations, the concept of inheritance factors influencing phenotype is more closely associated with Gregor Mendel and his work on genetics. De Vries focused on mutations rather than inheritance factors in the context of phenotype.
- **Conclusion**: This match is incorrect.

### Final Conclusion:
The only correct match is the first option: Giraffe with Long Neck - Lamarck.