Which of the following statements is true : a. in mutualism only one species benefits from cooperation , b. mutualism is a special type of interspecies competition c. growing large root systems is one way plants compete for water , d. food is the most important resource for plants

Defend or refute the argument that the government has too large a presence in the agriculture industry.

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

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist