Use the following scenario to calculate the carbon flux in the atmosphere. The amount of carbon that enters the atmosphere through natural processes is 211.6 GECY and the amount that leaves the atmosphere through natural processes in 213.8 GtCyr. The amount of carbon released by burning fossil fuels is 5.5 GiCyr. What is the
carbon flux in the atmosphere? (1 point)
O 22 GC/yr into the atmosphere
O 3.3 GiClyr out of the atmosphere
O 22 GtClyr out of the atmosphere
3
O 3.3 GCyr into the atmosphere

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Apart of an ecosystem that can restrict the growth of a population is referred to as