(D) Mass and energy can convert to one another.
C. <span>Regulatory proteins bind to repressor
Both produces certain proteins to break down lactose as a food source.</span>
Answer:
m
Explanation:
C = Fλ
C: Speed of light =
m/s
f: Frequency (Hz)
λ: Wavelength (m)
Rearrange formula for wavelength:
C/F = λ

Mass number = number of protons + number of neutrons
number of protons = atomic number =7
number of neutrons= mass number - number of protons=16-7=9
Answer is B.9.