1 Multicellular organisms are organized into several biological levels. Which of the following can apply to each level of biological organization? A Presence of tissues B Interaction of organs C Increased number of parts D Specific structure and function

The question is asking about the characteristics that apply to each level of biological organization in multicellular organisms. Let's analyze each option:<br /><br />1. **Presence of tissues**: This is true. In multicellular organisms, cells group together to form tissues, which are a higher level of organization than individual cells.<br /><br />2. **Interaction of organs**: This is also true. In more complex organisms, organs interact with each other to perform various functions. This interaction is a characteristic of a higher level of organization.<br /><br />3. **Increased number of parts**: This is generally true. As we move from cells to tissues to organs to organ systems, the number of parts increases. Each part has a specific role in the organism.<br /><br />4. **Specific structure and function**: This is true. Each level of organization has a specific structure and function. For example, the heart (an organ) has a specific structure that allows it to pump blood (its function).<br /><br />Therefore, all the options (A, B, C, D) can apply to each level of biological organization in multicellular organisms.