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  2. Adoption - Wikipedia

    en.wikipedia.org/wiki/Adoption

    Two innovations were added: 1) adoption was meant to ensure the "best interests of the child", the seeds of this idea can be traced to the first American adoption law in Massachusetts, [14] [21] and 2) adoption became infused with secrecy, eventually resulting in the sealing of adoption and original birth records by 1945. The origin of the move ...

  3. Article Four of the United States Constitution - Wikipedia

    en.wikipedia.org/wiki/Article_Four_of_the_United...

    Pursuant to a parallel clause in Article One, Section Eight, the Supreme Court has held that states may not tax such federal property. In another case, Kleppe v. New Mexico , the Court ruled that the federal Wild Horse and Burro Act was a constitutional exercise of congressional power under the Property Clause – at least insofar as it was ...

  4. Biological rules - Wikipedia

    en.wikipedia.org/wiki/Biological_rules

    The pygmy mammoth is an example of insular dwarfism, a case of Foster's rule, its unusually small body size an adaptation to the limited resources of its island home.. A biological rule or biological law is a generalized law, principle, or rule of thumb formulated to describe patterns observed in living organisms.

  5. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    Biology is the scientific study of life. [1] [2] [3] It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. [1] [2] [3] For instance, all organisms are made up of at least one cell that processes hereditary information encoded in genes, which

  6. Adaptation - Wikipedia

    en.wikipedia.org/wiki/Adaptation

    2. Adaptedness is the state of being adapted: the degree to which an organism is able to live and reproduce in a given set of habitats. [28] 3. An adaptive trait is an aspect of the developmental pattern of the organism which enables or enhances the probability of that organism surviving and reproducing. [29]

  7. Closed adoption - Wikipedia

    en.wikipedia.org/wiki/Closed_adoption

    Closed adoption (also called "confidential" adoption and sometimes "secret" adoption) is a process by which an infant is adopted by another family, and the record of the biological parent(s) is kept sealed. Often, the biological father is not recorded—even on the original birth certificate.

  8. History of biology - Wikipedia

    en.wikipedia.org/wiki/History_of_biology

    The history of biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine and the works of Aristotle, Theophrastus and Galen in the ancient Greco-Roman world.

  9. Nature versus nurture - Wikipedia

    en.wikipedia.org/wiki/Nature_versus_nurture

    Additionally, both types of studies depend on particular assumptions, such as the equal environments assumption in the case of twin studies, and the lack of pre-adoptive effects in the case of adoption studies. Since the definition of "nature" in this context is tied to "heritability", the definition of "nurture" has consequently become very ...