Choose the correct one-word substitution :
A study of living things.

Question

Choose the correct one-word substitution :
 A study of living things.

Accepted Answer

The correct one-word substitution for "A study of living things" is "Biology," which is Option 1. Here is the detailed explanation:

1. **Biology**: Biology is the scientific study of life and living organisms. It encompasses various aspects of life, including the structure, function, growth, evolution, distribution, and taxonomy of living organisms. Since the question specifically asks for the study of living things, biology is the most appropriate term that covers all aspects of life sciences.

2. **Chemistry**: Chemistry is the branch of science that deals with the study of the composition, structure, properties, and change of matter. While chemistry can involve the study of substances that are part of living organisms, it is not focused solely on living things. Therefore, it is not the correct answer for the study of living things.

3. **Ecology**: Ecology is a branch of biology that focuses on the relationships between living organisms and their environment. Although it involves the study of living things, it is more specific to interactions within ecosystems rather than the broader study of all living organisms. Thus, it is not the correct one-word substitution for the general study of living things.

4. **Botany**: Botany is the branch of biology that deals specifically with the study of plants. While it is a study of a subset of living things, it does not encompass the study of all living organisms, such as animals and microorganisms. Therefore, it is not the correct answer for the study of living things in general.

In conclusion, "Biology" is the correct one-word substitution for the study of living things, as it is the comprehensive scientific discipline that covers all aspects of life and living organisms.