This printable crossword puzzle on the topic of Human Body Systems has 12 clues. Answers range from 8 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Any change in the evironment that causes a response
Change in behaviour or physiology as a result in an environmental change
A method of communication where cells release substances that are detected by other cells
A system which conducts rapid responses within the body
Cells that release chemicals directly into the blood from endocrine organs.
Maintenance of internal environment in a constant state despite changing external factors.
Reversal of a change in the internal environment back to optimum conditions.
A process that increases change
Organism that relies o external sources of heat to regulate its body temperature.
An organism that uses internal sources of heat to maintain its body temperature.
A reaction that releases energy as heat
Region of our brain responsible for monitoring core temperature