study of envionment and animal relation is

Options

A. ecosystem
B. phytosocibiology
C. biotic community
D. ecology

Answer

To answer the question "study of environment and animal relation is," we need to analyze the options provided and determine which one best fits the description.

### Step-by-Step Solution:

1. **Understand the Options**: The options given are ecosystem, phytobiology, biotic community, and ecology. We need to examine what each term means in relation to the study of the environment and animal interactions.

2. **Define Ecosystem**: An ecosystem refers to the interaction between living organisms (biotic factors) and non-living components (abiotic factors) in a particular area. It includes both plants and animals and their relationships with the environment.

3. **Define Phytobiology**: Phytobiology is a branch of biology that focuses specifically on plants. It does not encompass the study of animals or their interactions with the environment.

4. **Define Biotic Community**: A biotic community consists of different populations of organisms in a specific area. However, it primarily focuses on the interactions among organisms themselves, without considering the environment.

5. **Define Ecology**: Ecology is the branch of biology that studies the relationships and interactions between organisms (including animals) and their environment. This definition directly addresses the question of how animals relate to their environment.

6. **Conclusion**: Based on the definitions, the study of the relationship between the environment and animals is best described by the term "ecology."

### Final Answer:
The study of environment and animal relation is **ecology**.

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