Two goldfish different parents. One fish has a split tail and the other does not. Why do the goldfish have tails with different shapes? a. Each goldfish has a different tail shape because offspring from different parents will have different tail shapes.

b. Each goldfish has a different tail shape because they have different versions of the gene for tail shape that connect together to make different tail shapes.

c. The goldfish have different versions of the gene for tail shape. The genes are split inside one goldfish's tail but not inside the other's

The goldfish have different versions of the gene for tail shape, which instuct for different proteins that connect in different ways to make different tail shapes.

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.