يونيو 27, 2026Elias Ntezimana
The root system is the underground part of a plant that anchors it firmly in the soil and absorbs water and mineral nutrients necessary for growth
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يونيو 27, 2026Elias Ntezimana
Viruses are microscopic infectious agents that can reproduce only inside living cells. They are much smaller than bacteria and infect all forms of life, including humans, animals, plants, fungi, and bacteria. Viruses are responsible for many diseases worldwide and have a major impact on human health, agriculture, veterinary medicine, and the environment.
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يونيو 27, 2026Elias Ntezimana
Animals live in a wide variety of environments known as habitats. A habitat is the natural place where an animal lives, grows, feeds, reproduces, and finds shelter
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يونيو 27, 2026Elias Ntezimana
Mammalian fertilization is the biological process in which a sperm cell fuses with an egg cell (ovum) to form a zygote, the first cell of a new individual
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يونيو 27, 2026Elias Ntezimana
espiration is the biological process by which living organisms obtain oxygen, use it to produce energy from food, and eliminate carbon dioxide
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يونيو 27, 2026Elias Ntezimana
Mendel's Laws are the fundamental principles of heredity that explain how traits are passed from parents to their offspring.
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يونيو 27, 2026Elias Ntezimana
lycemia, also known as blood glucose level, refers to the concentration of glucose (sugar) present in the blood. Glucose is the body's primary source of energy and is essential for the normal functioning of the brain, muscles, and other organs
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يونيو 24, 2026Elias Ntezimana
Blood groups are classifications of blood based on the presence or absence of specific antigens on the surface of red blood cells. Understanding blood groups is essential in medicine because they play a crucial role in blood transfusions, organ transplantation, and pregnancy management.
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يونيو 24, 2026Elias Ntezimana
Diabetes mellitus is a chronic metabolic disease characterized by high levels of glucose (sugar) in the blood. It occurs when the body does not produce enough insulin or cannot effectively use the insulin it produces.
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يونيو 24, 2026Elias Ntezimana
Ebola remains one of the most dangerous viral diseases in the world. Known for causing severe hemorrhagic fever, the virus continues to raise concerns whenever outbreaks occur because of its high mortality rate and its impact on communities and health systems.
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يونيو 24, 2026Elias Ntezimana
Dicotyledons, commonly called dicots, are a major group of flowering plants characterized by the presence of two cotyledons in their seeds
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يونيو 24, 2026Elias Ntezimana
Monocotyledons, commonly called monocots, are a major group of flowering plants (angiosperms) characterized by the presence of a single cotyledon in the seed. They include many economically important plants such as rice, wheat, maize, sugarcane, palms, orchids, and lilies.
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