The most inclusive division of time is the eon, which can be Archean, Proterozoic, Phanerozoic and they are divided into eras (Early/Middle/Late for the Archean and Proterozoic, Paleozoic, Mesozoic and Cenozoic for the Phanerozoic). Therefore, the correct answer is D. eon.
Decreasing resource use.
Increasing birth rate and decreasing death rate both increase the population which will make us really the carrying capacity quicker.
Emigration doesn’t make different on a global scale.
Diffusion is not the only way for particles to enter the cell. A process called endocytosis is another way for particles to enter cells by active transport. The process means engulfing and requires energy. On the other hand, another active transport process called exocytosis is the process of removing particles from the cells.
