So abiotic means nonliving, so the only abiotic option is B. the gravel on the bottom of the aquarium.
it would half to be dogs, cats, horses, chickens, ducks, geese, ants ,quails, harens ,blue jay
<span>The bacteria is likely from the sewage coming from the park's waste pipelines. The excess nitrogen would probably be from the pesticides used to control insects that the park sprayed around the outside of the pond.</span>
So 4000/750=5.3repeating so 6 because he has to move allll the gravel
According to ChaCha.com, "Parthenogenesis is a form of agamogenesis in which an unfertilized egg develops into a new individual. Parthenogenesis occurs naturally in many plants and invertebrates. This differs from other forms of asexual reproduction because an egg is used."
