The correct answer is D. All three a b and c.
Biologists study the living world, including its physical and chemical aspects, its organization and function, its development and evolution, and its interactions with the nonliving world. They are interested in all aspects of life, from the smallest bacteria to the largest whales, from the simplest single-celled organisms to the most complex multicellular organisms.
Biologists use a variety of methods to study life, including observation, experimentation, and modeling. They may study living organisms in their natural habitats or in laboratory settings. They may also use computer models to simulate the behavior of living systems.
Biologists make important contributions to our understanding of the natural world. Their work helps us to understand how life works, how it has evolved, and how it interacts with the environment. This understanding is essential for addressing many of the challenges facing our planet, such as climate change, pollution, and disease.
Here is a brief explanation of each option:
- Option A: Living part of nature. Biologists study all aspects of life, from the smallest bacteria to the largest whales, from the simplest single-celled organisms to the most complex multicellular organisms.
- Option B: Non living things influencing living things. Biologists also study how non-living things, such as the environment, affect living things. For example, they study how climate change is affecting plants and animals.
- Option C: How life works. Biologists are interested in all aspects of life, including its physical and chemical aspects, its organization and function, its development and evolution, and its interactions with the nonliving world.