The connects the axon of one neuron with the dendrite of another neuron to relay messages. neurons transmit information to each other through synaptic gaps. the cells release chemicals known as into the synaptic gaps to communicate with one another.

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

What is the similarities and differences between bacteria and eukaryote?