### Answer
The term "ecology" was coined by Ernst Haeckel in 1869. This German biologist introduced the term from the Greek words "oikos" (house) and "logos" (study), thus defining ecology as the study of organisms in their environment.

### Explanation
- **a. Ernst Haeckel in 1869**: This is the correct option as Haeckel is recognized for introducing the concept of ecology.
- **b. E. P. Odum in 1994**: While Odum is known for his contributions to ecology, particularly in ecosystem ecology, he did not coin the term.
- **c. Tansley in 1935**: Tansley contributed significantly to the field but was not the originator of the term "ecology."
- **d. Wangari in 1884**: Wangari Maathai was a prominent environmentalist but did not coin the term.

In conclusion, the correct answer is **a. Ernst Haeckel in 1869**.

Question

### Answer
The term "ecology" was coined by Ernst Haeckel in 1869. This German biologist introduced the term from the Greek words "oikos" (house) and "logos" (study), thus defining ecology as the study of organisms in their environment.

### Explanation
- **a. Ernst Haeckel in 1869**: This is the correct option as Haeckel is recognized for introducing the concept of ecology.
- **b. E. P. Odum in 1994**: While Odum is known for his contributions to ecology, particularly in ecosystem ecology, he did not coin the term.
- **c. Tansley in 1935**: Tansley contributed significantly to the field but was not the originator of the term "ecology."
- **d. Wangari in 1884**: Wangari Maathai was a prominent environmentalist but did not coin the term.

In conclusion, the correct answer is **a. Ernst Haeckel in 1869**.

Knowee AI · Accepted Answer

### Answer
The term "ecology" was coined by Ernst Haeckel in 1869. This German biologist introduced the term from the Greek words "oikos" (house) and "logos" (study), thus defining ecology as the study of organisms in their environment.

### Explanation
- **a. Ernst Haeckel in 1869**: This is the correct option as Haeckel is recognized for introducing the concept of ecology.
- **b. E. P. Odum in 1994**: While Odum is known for his contributions to ecology, particularly in ecosystem ecology, he did not coin the term.
- **c. Tansley in 1935**: Tansley contributed significantly to the field but was not the originator of the term "ecology."
- **d. Wangari in 1884**: Wangari Maathai was a prominent environmentalist but did not coin the term.

In conclusion, the correct answer is **a. Ernst Haeckel in 1869**.

THE TERM "ECOLOGY" WAS COINED BYQuestion 15Answera.Earnst Haeckel in 1869b.E P Odum in 1994c.Tansley in 1935d.Wangari in 1884

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THE TERM "ECOLOGY" WAS COINED BY

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