The organization of the biological world begins with the submicroscopic molecular level.

Introduction:
The organization of the biological world refers to the hierarchical arrangement of living organisms and their components. It starts from the most fundamental level and progresses to more complex levels. Understanding this organization is crucial for studying biology and comprehending the diverse aspects of life.

Explanation:
The correct answer, option B, states that the organization of the biological world begins with the submicroscopic molecular level. This means that the basic building blocks of life, such as molecules, are the starting point of biological organization. Here is an explanation of why this answer is correct:

Molecular Level:
1. Molecules are the smallest functional units of living organisms.
2. They consist of atoms bonded together to form various compounds and substances.
3. Biological molecules, such as proteins, nucleic acids, carbohydrates, and lipids, play essential roles in the functioning of cells and organisms.
4. These molecules are involved in processes like metabolism, cell signaling, and genetic information storage.

Cellular Level:
1. Cells are the basic structural and functional units of living organisms.
2. They are composed of various molecules and organelles.
3. Cells carry out essential functions like growth, reproduction, and response to stimuli.
4. Cells come in different types and specialize in performing specific tasks in multicellular organisms.

Organismic Level:
1. The organismic level refers to the organization of multiple cells into a complete living organism.
2. It involves the coordination and integration of various organ systems to maintain the overall function and survival of the organism.
3. At this level, different tissues, organs, and systems work together to perform complex tasks and ensure the organism's survival and reproduction.

Conclusion:
The organization of the biological world begins with the submicroscopic molecular level, as molecules are the fundamental building blocks of life. From there, molecules combine to form cells, which further organize to create complete living organisms. Understanding this hierarchical organization is essential for studying and comprehending the complexities of life.