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10. "All organisms have the same internal structure" is not part of the cell theory.
Organisms have different internal structures that vary depending on their specific functions, characteristics, and evolutionary adaptations. The cell theory focuses on cells' fundamental properties and functions rather than asserting that all organisms have identical internal structures.
11. An important job of all tissues, organs, and organ systems in multicellular organisms is to contribute to the overall functioning and survival of the organism. Here are some key roles they play:
1. Tissues: Tissues are cells that work together to perform a specific function. They provide structural support, enable cell communication, and perform specialized tasks. For example, muscle tissue contracts to allow movement, while epithelial tissue forms protective barriers and facilitates organ absorption or secretion.
2. Organs: Organs are composed of different tissues working together to perform specific functions. Each organ has a unique structure and function that contributes to the overall well-being of the organism. For instance, the heart pumps blood to supply oxygen and nutrients to all cells, while the lungs facilitate gas exchange, enabling oxygen uptake and carbon dioxide removal.
3. Organ Systems: Organ systems are groups of organs that collaborate to carry out complex functions necessary for the organism's survival. Examples of organ systems include the circulatory, respiratory, digestive, and nervous systems. Each system has a specific set of organs that work together to perform vital functions like transportation, nutrient absorption, waste removal, and coordination of body activities.
The tissues, organs, and organ systems in multicellular organisms collectively work harmoniously to maintain homeostasis, support growth and development, and respond to internal and external stimuli. They ensure that the organism's cells receive essential nutrients, gases, and signals and efficiently eliminate waste products. The coordination between tissues, organs, and organ systems also allows for specialized functions and overall organismal health.
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