Acertain atom of oxygen contains 8 protons, 8 neutrons, and 8 electrons. another atom of unknown identity contains 9 protons. which of the following must be true about this unidentified atom?
a. it is an isotope of oxygen
b. its atomic mass is a decimal number
c. it has 9 neutrons in its nucleus
d. it cannot be an atom of oxygen

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a. the offspring are more likely to have freckles. b. the offspring are more likely to have no freckles. c. the likelihood of the offspring having freckles and not having freckles is the same. d. the likelihood of the offspring having freckles and not having freckles cannot be determined.

What process occurs during cellular development as the cell changes into a specific type of cell with specialized functions? a. binary fission b. fusion c. differentiation d. meiosis