Multicellular organisms have a hierarchical

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Multicellular organisms have a hierarchical structural organization, in which any one system is made up of the numerous parts and is itself a component of the next level.
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Blood Pressure (Normal) 80/120 The form of life starts by one small cell with functions of itself, a bunch of cells that operate together create an organ, a groups on The right atrium receives deoxygenated blood. The blood travels down to the right ventricle through the tricuspid valve. Valves prevent blood from flowing backwards. The blood passes through the pulmonary valve into the pulmonary arteries. Cell Cycle Use a model to illustrate the role of cellular division (mitosis) and differentiation in producing and maintaining complex organisms. Prokaryotes Cell cycle is simple. Cell grows, DNA replicates Cell divides Eukaryotes Cell cycle is more complex. Has two main phases: 1. Interphase 2. Mitotic phase Cell Cycle in Eukaryotes Interphase includes…. Growth Phase (G1) Synthesis Phase (S) Growth Phase (G2) G0 Phase A phase out of the cell cycle is G0, which the cell enters when it needs to rest temporarily or reaches a point in its life when it can no longer replicate. A phase out of the cell cycle is G0, A phase, where the cell is neither dividing nor preparing to divide. Neurons and red blood cells are examples. When these cells reach their final mature state, they do not need to divide ever again. For this reason, the cells leave G1 and enter an alternative state called G0 where they stop dividing permanently.
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G1 Phase During G1 the cell’s main job is to grow. It create copies of its own organelles in preparation for the cell division as well as the necessary proteins for DNA replication. S Phase In the synthesis phase, the cell’s DNA is replicated. G2 Phase During G2, the cell makes the final preparations to divide, such as making additional proteins and organelles. There are regulatory proteins that control the cell cycle and make sure the cell is ready to move from one phase to the next.
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