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Steller's jay (Cyanocitta stelleri) is a bird native to western North America and the mountains of Central America, closely related to the blue jay (C. cristata) found in eastern North America. It is the only crested jay west of the Rocky Mountains. It is also sometimes colloquially called a "blue jay" in the Pacific Northwest, but is distinct ...
Sex differences in human physiology are distinctions of physiological characteristics associated with either male or female humans. These differences are caused by the effects of the different sex chromosome complement in males and females, and differential exposure to gonadal sex hormones during development. Sexual dimorphism is a term for the ...
Sex differences in humans have been studied in a variety of fields. Sex determination generally occurs by the presence or absence of a Y chromosome in the 23rd pair of chromosomes in the human genome. Phenotypic sex refers to an individual's sex as determined by their internal and external genitalia and expression of secondary sex characteristics.
Blue Jay, capitalized, is a different species of jay from the Western Scrub-jay. The Western Scrub-jay may be a blue jay, but it is not a Blue Jay. A great reason as to why bird names should be capitalized. Rufous-crowned Sparrow 13:33, 9 May 2010 (UTC)
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Sexual differentiation is the process of development of the sex differences between males and females from an undifferentiated zygote. [1] [2] Sex determination is often distinct from sex differentiation; sex determination is the designation for the development stage towards either male or female, while sex differentiation is the pathway towards the development of the phenotype.
The neuroscience of sex differences is the study of characteristics that separate brains of different sexes. Psychological sex differences are thought by some to reflect the interaction of genes, hormones, and social learning on brain development throughout the lifespan. A 2021 meta-synthesis led by Lise Eliot found that sex accounted for 1% of ...
Definition. Psychological sex differences refer to emotional, motivational, or cognitive differences between the sexes. [9][8] Examples include greater male tendencies toward violence, [10] or greater female empathy. The terms "sex differences" and "gender differences" are sometimes used interchangeably; they can refer to differences in male ...