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  2. Organ (biology) - Wikipedia

    en.wikipedia.org/wiki/Organ_(biology)

    Organ (biology) In a multicellular organism, an organ is a collection of tissues joined in a structural unit to serve a common function. [ 1] In the hierarchy of life, an organ lies between tissue and an organ system. Tissues are formed from same type cells to act together in a function. Tissues of different types combine to form an organ which ...

  3. Organ system - Wikipedia

    en.wikipedia.org/wiki/Organ_system

    Nervous system in a human body. There are 11 distinct organ systems in human beings, [2] which form the basis of human anatomy and physiology.The 11 organ systems: the respiratory system, digestive and excretory system, circulatory system, urinary system, integumentary system, skeletal system, muscular system, endocrine system, lymphatic system, nervous system, and reproductive system.

  4. Plant anatomy - Wikipedia

    en.wikipedia.org/wiki/Plant_anatomy

    Plant anatomy. Chloroplasts in leaf cells of the moss Mnium stellare. Plant anatomy or phytotomy is the general term for the study of the internal structure of plants. Originally, it included plant morphology, the description of the physical form and external structure of plants, but since the mid-20th century, plant anatomy has been considered ...

  5. List of human hormones - Wikipedia

    en.wikipedia.org/wiki/List_of_human_hormones

    The following is a list of hormones found in Homo sapiens. Spelling is not uniform for many hormones. For example, current North American and international usage uses [citation needed] estrogen and gonadotropin, while British usage retains the Greek digraph in oestrogen and favours the earlier spelling gonadotrophin.

  6. List of systems of the human body - Wikipedia

    en.wikipedia.org/wiki/List_of_systems_of_the...

    cardiovascular system. endocrine system. (missing exocrine system) muscular system. Clockwise from top left: lymphatic system. respiratory system. urinary system. female reproductive system. male reproductive system.

  7. Tissue (biology) - Wikipedia

    en.wikipedia.org/wiki/Tissue_(biology)

    In plant anatomy, tissues are categorized broadly into three tissue systems: the epidermis, the ground tissue, and the vascular tissue. Epidermis – Cells forming the outer surface of the leaves and of the young plant body. Vascular tissue – The primary components of vascular tissue are the xylem and phloem. These transport fluids and ...

  8. List of energy storage power plants - Wikipedia

    en.wikipedia.org/wiki/List_of_energy_storage...

    World's largest concentrated solar power plant with molten salt storage built in 3 phases - 160 MW phase 1 with 3 hours heat storage, 200 MW phase 2 with 7 hours heat storage and 150 MW phase 3 with 7.5 hours heat storage. [ 2][ 3][ 4] McIntosh CAES Plant [ de] Compressed air storage, in-ground natural gas combustion. 2,860.

  9. Epidermis (botany) - Wikipedia

    en.wikipedia.org/wiki/Epidermis_(botany)

    The epidermis (from the Greek ἐπιδερμίς, meaning "over-skin") is a single layer of cells that covers the leaves, flowers, roots and stems of plants. It forms a boundary between the plant and the external environment. The epidermis serves several functions: it protects against water loss, regulates gas exchange, secretes metabolic ...