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Explanation: Fertilization is the process where male and female gametes fuse to form a zygote.
Explanation: Roots anchor the plant firmly in the soil and also absorb water and minerals.
Explanation: Vitamin A is important for maintaining healthy vision and preventing night blindness.
Explanation: Hearing involves multiple parts including the eardrum, cochlea, and auditory nerve working together to process sound.
Explanation: The respiratory system expels carbon dioxide from the body during exhalation.
Explanation: The cell membrane is selectively permeable, regulating what enters and leaves the cell.
Explanation: Sexual reproduction involves fusion of male and female gametes, leading to genetic variation.
Explanation: The stigma is the sticky part of the pistil that captures and holds pollen grains.
Explanation: Nerve cells (neurons) carry electrical signals throughout the body to coordinate actions.
Explanation: The stomach mechanically churns food and mixes it with digestive juices to break it down.
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