Me with this what is meant by allele frequency? a. the rate at which alleles occur b. the number of species that have the same trait c. the time it takes alleles to changes d. the number of generations in one population

Which of the following birds remained ancient looking in the miocene epoch? a. crows b. owls c. grouses d. none of the above

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

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