Which of these statements are supported by the data? Select all that apply.

a. The amounts of A, T, G, and C in
DNA is constant across species.
b. The amounts of A, T, G, and C in
DNA varies from species to species.
c. In any one species, the amount of
adenine closely approximates that of
thymine.
d. In any one species, the amount of
guanine closely approximates that of
cytosine.

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

In which ways are mercury and venus similar?

Explain how mendel kept his pea plant from self pollination