1. Because they are unstable and can share electrons in their outer energy levels.
2. Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.
Answer:
<em>The option D) 'Every cell has a nucleus that contains genetic material' is not a part of the cell theory.</em>
Explanation:
The cell theory has three main postulates which are:
- All living things are made up of a cell or different cells.
- All cells arise from pre-existing cells
- Cells are the basic unit of life.
The cell theory does not claim that every cell shall have a nucleus. The prokaryotes lack a nucleus yet still are living things. However, all cells will have genetic material in the form of DNA or RNA.
It’s a or c but it’s probably c
