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  2. Anatomical plane - Wikipedia

    en.wikipedia.org/wiki/Anatomical_plane

    A sagittal plane (also known as anteroposterior plane) is perpendicular to the ground, separating left from right. The median (or midsagittal) plane is the sagittal plane in the middle of the body; it passes through midline structures such as the navel and the spine. All other sagittal planes (also known as parasagittal planes) are parallel to it.

  3. Gaia hypothesis - Wikipedia

    en.wikipedia.org/wiki/Gaia_hypothesis

    The Gaia hypothesis (/ ˈ ɡ aɪ. ə /), also known as the Gaia theory, Gaia paradigm, or the Gaia principle, proposes that living organisms interact with their inorganic surroundings on Earth to form a synergistic and self-regulating complex system that helps to maintain and perpetuate the conditions for life on the planet.

  4. Sagittal plane - Wikipedia

    en.wikipedia.org/wiki/Sagittal_plane

    Coronal axis, medial-lateral axis, or frontal axis is the axis perpendicular to the sagittal plane, i.e., the one formed by the intersection of the coronal and the transversal planes. [8] Extension and flexion are the movements of limbs within the sagittal plane. [9] Abduction and adduction are terms for movements of limbs within the coronal ...

  5. The Life and Death of Planet Earth - Wikipedia

    en.wikipedia.org/wiki/The_Life_and_Death_of...

    The book also illustrates Earth's eventual fate by compressing its full 12 billion-year history into 12 hours on a clock, with the first life appearing at 1:00 am, the first animals and plants appearing at 4:00 am, and the present day being 4:29.59 am. The Earth is destroyed by the Sun at "high noon", though animals and plants come to an end by ...

  6. Earth system science - Wikipedia

    en.wikipedia.org/wiki/Earth_system_science

    Much Earth System science therefore relies on studies of the Earth's past behaviour and models to anticipate future behaviour in response to pressures. Life: Biological processes play a much stronger role in the functioning and responses of the Earth System than previously thought. It appears to be integral to every part of the Earth System.

  7. WATCH LIVE: NASA's views of Earth on Earth Day - AOL

    www.aol.com/article/2016/04/22/watch-live-nasas...

    What a better way to celebrate Earth Day than watching the planet from a new out-of-this-world perspective!

  8. Geography - Wikipedia

    en.wikipedia.org/wiki/Geography

    Geographers study the Earth's spatial and temporal distribution of phenomena, processes, and features as well as the interaction of humans and their environment. [21] Because space and place affect a variety of topics, such as economics, health, climate, plants, and animals, geography is highly interdisciplinary. The interdisciplinary nature of ...

  9. Scoliosis - Wikipedia

    en.wikipedia.org/wiki/Scoliosis

    As the condition progresses, it may alter a person's life, and hence can also be considered a disability. [10] It can be compared to kyphosis and lordosis , other abnormal curvatures of the spine which are in the sagittal plane (front-back) rather than the coronal (left-right).