What is the function of the eye's retina and optic nerve? A. The optic nerve converts light to neural signals that are transmitted to the brain by the retina.

B. The retina converts light to neural signals that are transmitted to the brain by the optic nerve.

C. The retina focuses incoming light that is converted to neural signals by the optic nerve.

D. The optic nerve focuses incoming light that is reflected by the retina.

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally