Answer:
1. All living organisms are composed of cells.
2. The cell is the basic unit of structure and function in living organisms.
3. Cells arise from pre-existing cells.
Step-by-step explanation:
1. All living organisms are composed of cells:
- This principle states that all living things, from single-celled organisms to complex multicellular organisms, are made up of one or more cells.
- Cells are the building blocks of life and are responsible for the structure and function of living organisms.
2. The cell is the basic unit of structure and function in living organisms:
- This principle emphasizes that cells are the smallest and most basic units that can perform all the necessary functions of life.
- Cells carry out various processes such as metabolism, reproduction, response to stimuli, and maintaining homeostasis.
3. Cells arise from pre-existing cells:
- This principle states that new cells are formed through cell division, where existing cells give rise to daughter cells.
- Cells reproduce through processes such as mitosis (in multicellular organisms) or binary fission (in single-celled organisms).