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 ...

(i) Information is acquired at the dendrites of a neuron. (ii) Information travels as an electrical impulse along the axon. (iii) The impulse is converted into a chemical signal at the synapse, where chemicals are released.

Nervous impulses are delivered to other cells through synapses. The chemicals released at the end of the axon cross the synapse and trigger similar impulses in the dendrites of the next neuron, allowing the transmission of signals to muscles or ...

The electrical impulse travels from the dendrite to the cell body and then along the axon. At the end of the axon, the impulse triggers the release of chemicals, which cross the synapse and initiate a similar electrical impulse in ...

Detection of touching a hot object occurs through specialized tips of nerve cells called receptors. These receptors, located in sense organs, initiate a chemical reaction at the dendritic tip of a nerve cell in response to environmental stimuli.

Plant waste products are stored as resins, gums, and in cellular vacuoles. Transpiration helps eliminate excess water, and shedding leaves and excretion into the soil are additional strategies for effective waste management in plants.