Ascientist working in the field wants to determine the approximate ph of
swamp water using a simple and inexpensive technique. which tool should
the scientist use to measure an approximate ph?
a. a ph indicator
b. a strip of ph paper
c. a ph scale
d. a ph meter

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of