Prophase: Chromosomes condense into visual forms and nuclear envelope breaks down.
<span>Metaphase: Chromosomes pair and line up along metaphase plate(midline) and also attatch to mitotic spindles at centromere. </span>
<span>Anaphase: Mitotic spindles attached to chromosomes pull half of the chromosomes to each side of cell. </span>
<span>Telophase: Nuclear envelope begins to reform. </span>
<span>animal cells: Cleavage in cell occurs which divides cell into two. </span>
<span>plant cells: Cell wall forms in the middle of cell to separate the cell.</span>
Cells are the basic building blocks of all living things. Water is the most abundant chemical in cells. Proteins and lipids are the building materials of cells. Nucleic acids are the genetic material that direct the cell's activities.
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The number of valence electrons define how the elements combine. For example, if element A has 3 valence electrons and element B has 5, they would share so that both element satisfies the octet rule.
D. Decomposers return everything back to the environment
