Which statement about emission spectra is correct? a. all of the lines are evenly spaced. b. all noble gases have the same spectra. c. each line corresponds to a series of wavelengths. d. all of the lines result from discrete energy differences.

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

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

Nucleic acids offer variability because they contain alternate forms of genes called .