The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone.
Complementary DNA (cDNA) is a DNA copy of a messenger RNA (mRNA) molecule produced by reverse transcriptase, a DNA polymerase that can use either DNA or RNA as a template.
Hydrophilic means "water-loving," which means that hydrophilic molecules readily associate with polar molecules such as water.
the answer i think be a area a has more predators then area b because if it was disease or lack of food source they wouldn't that low i think
