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Reflexes allow you to respond to a stimuli (change in environment). A simple reflex begins with a receptor which are found in sense organs and allow you to detect the stimuli. An example of a sense organ ...

Mitochondria are organelles which are present in all cells. They are the sites for cellular respiration which provides an organism with energy.

The concentration is higher in the soil. The process of active transport is used to move molecules against the concentration gradient (from a low to a high concentration). Therefore the concentration of i...

Neurons are the basic cells in the nervous system. They are made up of a soma, axon, dendrites and synapse. The synapse is the end part of the neuron that is in charge of sending a message from one neuron...