<span>A. Stimulus is the term used to describe what causes organisms to react to their environment. Stimulus is something that can provoke organisms to respond to the world around them. For example, if you put your hand on the stove, the stove is going to be the stimulus for you to get burned and move your hand from it because it will be to hot - that is going to be your reaction to the stimulus. Camouflage is a type of hiding mechanism, parasites are organisms, and homeostasis is equilibrium in an organism. </span>
Hi there,
The answer to that fill-in the blank is Liver.
The Liver is where urea is produced.
It also performs 500 different functions in your body, that is why your liver is important to your body.
Hope this is correct :)
Have a great day
Glands are classified as ENDOCRINE or EXOCRINE depending on their route of secretion. ENDOCRINE GLANDS secrete their products, called hormones, directly into the blood. ... Their products are NOT released into the blood. Exocrine glands are classified on the basis of the number of cells making up the glands.