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The next stage
Contents Future history Spiral development Historical patterns Slave economy Land-duty economy Capitalist economy Economic trends State trends Society trends Summary history Download the book Appendices Capitalist globalization Historical Materialism Disproving Marxism Proof of the theory Biological lifecycles Lifecycle examples Feedback |
Life cycles
Living things' life cycles follow a spiral development. Most living things' life cycles go thru the stages: conception, birth, growth, reproduction and death. In each of these stages - and within each stage - they go thru a series of changes between opposite forms. Species' lifecycles have the following main aspects: Reproduction: This is the means by which species evolve thru genetic variations. Having reproduced, the new life forms develop by form changes and growth. Form change: For a stage to develop it must first exist. So, form changes precede growth periods. Growth: The initial lifeform created by reproduction is smaller than the parent(s) that gave it life. So, it must grow to become a reproductive adult. Food: Food provides the materials required for form change and growth. Nurturing: For advanced lifeforms, nurturing provides emotional and social development. Examples of some species' lifecycles Content copyright: Nathan Davis 2003-2010 If you've questions or comments, please contact me: nathan_k_davis@after-capitalism.com |