<u>Answer:</u>
<em>Earthworms are very sensitive towards the odor. </em>
They use it for locating the food in the soil. Because earthworms are dependent upon microorganism in the soil, they must be sensible for the <em>presence of any food around them if they do not respond the odor then they may die. </em>
Earthworms have the escape response so they quickly respond the external stimuli at the part they are stimulated. <em>With the increasing frequency of stimuli at the same part they slowly decrese the response towards it.</em>
The correct answer is compulsions.
Compulsions are repetitive behaviors or acts that individuals feel compelled to perform due to their obsessive thoughts and beliefs. Examples of compulsions include: repeatedly washing one's hands due to the fear or germs, checking to see if doors are locked and repeatedly arranging things in a particular manner. Compulsions stem from anxiety.
Answer: Sedentary agriculture develops.
People hunt and gather food.
Farming villages grow.
Cities develop.
Explanation: Think of the latest things we have and go back from that
