Which of the following is an example of a beneficial mutation? A.) Inherited polyploidy causes your body to produce bacteria that will not resist antibiotics.

B.) Spontaneous mutations produce polyploidy plants, producing larger and heartier plants.

C.) Non-disjunction causes mutations that make some humans resistant to HIV.

D.) Mutagens can decrease the rate at which mutations occur in an organism.

How can you approximate the number of calories required to keep you in energy balance?

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

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only