As the biological hierarchy builds from molecules, which of the following correctly represents the next level of organization?

• A. Cells
• B. Organs
• C. Tissues
• D. Organelles

Answer: (D)

Verified step by step guidance

1. Step 1: Understand the biological hierarchy, which organizes life from the simplest to the most complex levels. It begins with molecules, the smallest units of matter, and progresses to larger structures.
2. Step 2: Recognize that molecules combine to form organelles. Organelles are specialized structures within cells that perform specific functions, such as mitochondria for energy production or the nucleus for storing genetic material.
3. Step 3: Note that organelles collectively make up cells, which are the basic units of life. Cells are the next level of organization after organelles in the biological hierarchy.
4. Step 4: Understand that cells group together to form tissues, which are collections of similar cells working together to perform a specific function, such as muscle tissue or nervous tissue.
5. Step 5: Finally, tissues combine to form organs, which are structures composed of multiple tissue types working together to perform complex functions, such as the heart or lungs.