Both dolphins and whales still have their hip (pelvic) bones present. These bones connect and transfer the weight of the trunk to the lower limbs.
Thus, <em>the presence of the pelvic bone may indicate that whales had ancestors that walked on land</em>.
George Vaillant's view of developmental biology is the map of life events. keeping on time will keep one's self well-adjusted life requires a constant series of adaptations. culture determines the life cycle. <u>Life requires a constant series of adaptations.</u>
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Life cycle, in biology, is the series of modifications that the individuals of a species undergo as they bypass from the beginning of a given developmental level to the inception of that identical developmental stage in a subsequent era.
A life cycle ends when an organism dies. In standard, plants and animals go through 3 simple tiers in their lifestyles cycles, starting as a fertilized egg or seed, growing into an immature juvenile, and then ultimately transforming into a grownup.
A life cycle approach can assist us to make picks. It implies that everybody within the complete chain of a product's life cycle, from cradle to grave, has a duty and a function to play, contemplating all of the relevant effects on the economic system, the environment, and society.
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Soil erosion is defined as the wearing away of topsoil. Topsoil is the top layer of soil and is the most fertile because it contains the most organic, nutrient-rich materials. Therefore, this is the layer that farmers want to protect for growing their crops and ranchers want to protect for growing grasses for their cattle to graze on.
