freak for got it
Sensory receptors detect changes in the environment known as stimuli. These receptors are specialized cells that send signals to the brain or spinal cord in response to specific types of stimuli such as light, sound, pressure, or chemical signals.
Receptor cells are specialized cells that detect specific stimuli, such as light, sound, touch, taste, and smell. They convert these stimuli into electrical signals that can be interpreted by the brain, allowing us to perceive our environment and respond to it accordingly.
white blood cells
Normal cells have built-in mechanisms that regulate their growth and division. These mechanisms involve signals from the surrounding environment, as well as internal checkpoints that ensure the cell has the proper conditions to divide. When these signals and checkpoints detect that the cell population is sufficient or conditions are unfavorable, they trigger the cell to stop growing and potentially enter a state of dormancy or programmed cell death.
protectors
With help of neurosensory like cells .
Flatworms require three key types of cells to respond to stimuli: sensory cells, which detect changes in the environment; motor neurons, which transmit signals to muscles for movement; and interneurons, which process information and relay signals between sensory and motor cells. These interconnected cells enable flatworms to exhibit simple reflexes and coordinated responses to stimuli. This basic nervous system allows them to navigate their environment effectively.
The cells that detect changes in stimuli, such as light, are located in the retina of the eye. Specifically, the photoreceptor cells, which include rods and cones, are responsible for converting light into electrical signals. These signals are then transmitted to the brain via the optic nerve, allowing us to perceive visual information.
rod and cone cells
Cancer cells do not respond to the signals that regulate the growth of most cells. such cells called cancer cells divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues
A major characteristic of living cells is that they respond to various stimuli in their environment, such as changes in temperature, pH, or nutrient availability. This ability to detect and react to external signals is essential for cells to maintain homeostasis and adapt to changing conditions.
The special cells of the sense organs that receive stimuli from the environment are called receptors. The receptors detect different changes in the surrounding envronment and stimulate the neurons to perform the proper tasks.