Why are sparrows important to the human food web?
A. Humans eat sparrows and find them to be quite a delicacy
B. Biologically , sparrows are much like humans and eat the same foods as humans .
C. Sparrows eat insects and worms that destroy food crops that humans eat.
D. Sparrows eat other sparrows young.

Chromosome 17 is made of over million base pairs.

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.

Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?