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First of all, the stimulus (a change in environment) will cause the receptor in the skin to fire an action potential down the sensory neurone. The sensory neurone then reaches the relay neurone in the CNS...

The growth and roots and shoots is caused by the plant hormone auxin. Shoots grow towards light, known as phototropism, they also grow upwards against the force of gravity which is known as geotropism. In...

mitosis is the process by which one cell can divide to generate two genetically identical daughter cells. It allows a population of cells to increase in numbers.

In mitosis the cell initially creat...

Receptors are specialised cells used to detect, stimuli or even convert stimulus in to an impulse. They are usually found in sense organs like the eye, which has light sensitive receptors known as retina,...

They are the energy producing organelle. In the motochondria, glucose is converted into energy.