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Because there would not have been any significant soil before significant establishment of life-forms on land,the earliest eukaryotic life-forms on land most likely were:
Intimacy Versus Isolation
A stage in Erik Erikson's theory of psychosocial development where adults face the challenge of forming close relationships with others or experiencing loneliness and isolation.
Generativity Versus Stagnation
A stage in Erik Erikson's theory of psychosocial development occurring during middle adulthood when individuals strive to create or nurture things that will outlast them, vs. a sense of stagnation and unproductivity.
Identity Versus Role Diffusion
A stage in Erik Erikson's theory of psychosocial development where adolescents explore their independence and develop a sense of self, or face confusion about roles and future.
Longitudinal Research
A research method that studies the same subjects over a period of time, observing changes or developments.
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