The next stage
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Proof of the theory
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 2003-2013
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