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  1. Asked: 5 months agoIn: , , , ,

    The word ‘Denisovan’ is sometimes mentioned in media in reference …

    Pankaj Gupta
    Pankaj Gupta Scholar

    The word Denisovan refers to an extinct group of archaic humans that lived in parts of Asia around 50,000 to 200,000 years ago. They are named after the Denisova Cave in Siberia, where their fossils and genetic material were first discovered in 2008. Denisovans are closely related to Neanderthals anRead more

    The word Denisovan refers to an extinct group of archaic humans that lived in parts of Asia around 50,000 to 200,000 years ago. They are named after the Denisova Cave in Siberia, where their fossils and genetic material were first discovered in 2008. Denisovans are closely related to Neanderthals and modern humans, and their DNA has been found in some modern populations, particularly among Melanesians, Aboriginal Australians, and some Southeast Asian groups.

    In media, the term is often mentioned in discussions about human evolution, genetics, and the interbreeding between different human species in ancient times.

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  2. Asked: 7 months agoIn:

    How do plants store energy?

    Pankaj Gupta
    Pankaj Gupta Scholar

    Plants store energy primarily in the form of chemical energy through the process of photosynthesis. Here's how it works and where the energy is stored: Photosynthesis Process: Plants capture sunlight using a pigment called chlorophyll, found in chloroplasts. Using sunlight, they convert carbon dioxiRead more

    Plants store energy primarily in the form of chemical energy through the process of photosynthesis. Here’s how it works and where the energy is stored:

    1. Photosynthesis Process:
      • Plants capture sunlight using a pigment called chlorophyll, found in chloroplasts.
      • Using sunlight, they convert carbon dioxide (CO₂) from the air and water (H₂O) from the soil into glucose (C₆H₁₂O₆), a simple sugar, and release oxygen (O₂) as a byproduct.
    2. Energy Storage in Glucose:
      • The glucose produced during photosynthesis acts as an immediate energy source.
      • When energy is needed, glucose undergoes cellular respiration to produce ATP (adenosine triphosphate), the usable energy currency of cells.
    3. Conversion to Starch:
      • Excess glucose is converted into starch, a complex carbohydrate, for long-term storage. Starch is stored in:
        • Leaves
        • Roots (e.g., potatoes, carrots)
        • Stems
        • Seeds (e.g., rice, wheat, corn)
    4. Oils and Fats:
      • In some plants (e.g., sunflower, soybean, and olive), glucose is converted into oils and fats for energy storage in seeds.
    5. Cellulose:
      • Glucose is also used to synthesize cellulose, which is a structural component of the cell wall. While not used for energy storage, cellulose demonstrates how plants utilize the products of photosynthesis.

    In summary, plants store energy in the form of starch and sometimes as oils and fats, ensuring they have reserves to fuel their growth, reproduction, and survival during unfavorable conditions.

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  3. Asked: 9 months agoIn: , ,

    How many of the given statements are correct regarding mushrooms?

    Pankaj Gupta
    Pankaj Gupta Scholar
    This answer was edited.

    Let's analyze each statement to determine its correctness: Some mushrooms have medicinal properties: This is true. Certain mushrooms, such as Reishi and Shiitake, are known for their medicinal benefits, including immune-boosting and anti-inflammatory properties. Some mushrooms have psychoactive propRead more

    Let’s analyze each statement to determine its correctness:

    1. Some mushrooms have medicinal properties: This is true. Certain mushrooms, such as Reishi and Shiitake, are known for their medicinal benefits, including immune-boosting and anti-inflammatory properties.
    2. Some mushrooms have psychoactive properties: This is also true. Psilocybin mushrooms, often called “magic mushrooms,” contain psychoactive compounds that can alter perception and mood.
    3. Some mushrooms have insecticidal properties: True. Some fungi, like Beauveria bassiana, produce compounds that act as natural insecticides, infecting and killing various insect species.
    4. Some mushrooms have bioluminescent properties: True as well. Certain mushrooms, such as Panellus stipticus and Mycena chlorophos, exhibit bioluminescence and emit a glowing light.

    All four statements are correct. Therefore, the correct answer is: All four

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  4. Asked: 9 months agoIn: , ,

    Invasive Species Specialist Group

    Pankaj Gupta
    Pankaj Gupta Scholar
    This answer was edited.

    The 'Invasive Species Specialist Group' (ISSG), which develops the Global Invasive Species Database, is a part of: The International Union for Conservation of Nature (IUCN). The ISSG is a specialist group of the IUCN's Species Survival Commission (SSC). It focuses on invasive species and their impacRead more

    The ‘Invasive Species Specialist Group’ (ISSG), which develops the Global Invasive Species Database, is a part of: The International Union for Conservation of Nature (IUCN). The ISSG is a specialist group of the IUCN’s Species Survival Commission (SSC). It focuses on invasive species and their impact on biodiversity, and its Global Invasive Species Database is a widely used resource for information on invasive species worldwide.

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