When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Animal embryonic development - Wikipedia

    en.wikipedia.org/wiki/Animal_embryonic_development

    In developmental biology, animal embryonic development, also known as animal embryogenesis, is the developmental stage of an animal embryo. Embryonic development starts with the fertilization of an egg cell (ovum) by a sperm cell (spermatozoon). [1] Once fertilized, the ovum becomes a single diploid cell known as a zygote.

  3. Breast - Wikipedia

    en.wikipedia.org/wiki/Breast

    The breasts are two prominences located on the upper ventral region of the torso among humans and other primates. Both sexes develop breasts from the same embryological tissues. The relative size and development of the breasts is a major secondary sex distinction between females and males.

  4. Breast development - Wikipedia

    en.wikipedia.org/wiki/Breast_development

    Breast development, also known as mammogenesis, is a complex biological process in primates that takes place throughout a female 's life. It occurs across several phases, including prenatal development, puberty, and pregnancy. At menopause, breast development ceases and the breasts atrophy. Breast development results in prominent and developed ...

  5. Stellar evolution - Wikipedia

    en.wikipedia.org/wiki/Stellar_evolution

    Representative lifetimes of stars as a function of their masses The change in size with time of a Sun-like star Artist's depiction of the life cycle of a Sun-like star, starting as a main-sequence star at lower left then expanding through the subgiant and giant phases, until its outer envelope is expelled to form a planetary nebula at upper right Chart of stellar evolution

  6. Puberty - Wikipedia

    en.wikipedia.org/wiki/Puberty

    The main reason for this detrimental effect is the issue of body image. As they physically develop, gaining weight in several areas of the body, early-maturing females usually look larger than females who have not yet entered puberty. A result of the social pressure to be thin, the early-maturing females develop a negative view of their body image.

  7. Massive Development - Wikipedia

    en.wikipedia.org/wiki/Massive_Development

    Massive.de (archived) Massive Development GmbH was a German video game developer based in Mannheim, Germany. Founded as Massive Development GbR, the company was active between 1994 and 2005 and is primarily known for their post-apocalyptic science fiction video games Archimedean Dynasty and AquaNox, which have attained somewhat of a cult status.

  8. Human brain development timeline - Wikipedia

    en.wikipedia.org/wiki/Human_brain_development...

    Cortical white matter increases from childhood (~9 years) to adolescence (~14 years), most notably in the frontal and parietal cortices. [8] Cortical grey matter development peaks at ~12 years of age in the frontal and parietal cortices, and 14–16 years in the temporal lobes (with the superior temporal cortex being last to mature), peaking at about roughly the same age in both sexes ...

  9. Rostow's stages of growth - Wikipedia

    en.wikipedia.org/wiki/Rostow's_stages_of_growth

    The development of one or more substantial manufacturing sectors with a high rate of growth; he indicates the leading sectors in the economy. Rostow regards the development of leading sectors as the 'analytical bone structure' of the stages of economic growth. There are generally three sectors of an economy: Primary Sector - Agriculture