Explain why state governments are better able to focus on the needs of their citizens than the federal government?

They oversee smaller geographical areas, is the right answer.

Explanation:

For the following reasons the state government are better able to concentrate on the requirements of their subjects than the federal government:

1. The federal government looks after the population of the nation as a whole while the state government is accountable for the living of the residents of a particular state.

2. The state government made rules and regulations by keeping in mind the situation of the state whereas, the federal government makes laws for the entire nation by looking at the condition of the whole nation and not of a particular state.

3. A state government better understand the needs and requirements of its subjects due to the very fact that it has not to deal with the issues of the entire nation whereas the federal government has to look after all the states.

Earthworms are very sensitive towards the odor.

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 presence of any food around them if they do not respond the odor then they may die.

Earthworms have the escape response so they quickly respond the external stimuli at the part they are stimulated. With the increasing frequency of stimuli at the same part they slowly decrese the response towards it.