There are two branches of the autonomic nervous system, namely the sympathetic nervous system and the parasympathetic nervous systems. Both of which regulates bodily functions involuntarily but in different manners. The parasympathetic system is the system primarily activated in "relaxed" states or "rest and digest" states. These include digestion, urination, slowing of heart rate, slowing of respiratory rate, etc. The sympathetic nervous system on the other hand is primarily activated by "flight or flight" response such as rage or fear. These include inhibition of digestion, increase in heart rate and respiratory rate, sweating, etc.
Well the lizards might not feel threatened. when a lizard or chameleon change due to a chemical reaction in there skin it is made that way based off of the emotion that creates there skin to change colors, but it is a survival instinct so it happens due to there sense of danger <span />
<span>This type of treatment is called aversive conditioning. This is used to avoid or forget the bad or unwanted behaviour. This is done by giving punishment for doing that behaviour and creating aversion on that behaviour.</span>
One difference is that DNA is a double strand and RNA is a single strand. Another difference is that sugar in a RNA molecule is ribose, and the sugar in the molecule in DNA is called deoxyribose. Hope this helps, good luck!
The mechanical layer lies above the core is the mantle. It is the layer that is found after the core and it is the second layer of the Earth . It is about 84% of the Earth’s volume.
