The table below shows the mass of some horse fossils Horse Fossil Record
Horse Fossil Mass (kg)
А
80
B
270
с
150
D
50
Ancient horses had less mass than present-day horses. The mass of the present-day horse is about 500 kilograms What the correct order of evolution of the
horse starting from the youngest fossi?
OACOB
OBOCA
ODACB
OBCAD
Question 1 (Answered)
Med sin
Previous
B

the correct answer would be d. hope this !

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