Animals get their food from plants, other animals, or a combination of both. They are either herbivores (plant-eaters), carnivores (meat-eaters), or omnivores (consumers of both plants and animals). NCERT Class 8 Science Chapter 1 Crop Production and Management
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Organisms, including humans, need to eat food to obtain essential nutrients and energy. The energy derived from food is utilized for various body functions such as digestion, respiration, and excretion. NCERT Class 8 Science Chapter 1 Crop Production and Management
The speed of thinking in response to urgent situations depends on the transmission of nerve impulses. If thinking involves the creation of such impulses, the rapid transmission of these impulses among neurons facilitates quick and instinctive reactions, allowing the body ...
Touching a flame is urgent and dangerous because it poses a threat of burning, causing harm to the body. It triggers a rapid and instinctive response to withdraw from the source of potential injury.
In everyday situations, the term ‘reflex’ implies responding to environmental changes without conscious thought or control. Actions like jumping away from a bus, pulling back from a flame, or salivating when hungry occur spontaneously as a quick, automatic response to ...