Sometimes the moon appears to have a halo around it at night. why does this happen?
a. it's due to a partial lunar eclipse.
b. moonlight is refracted through ice crystals in high clouds.
c. it has to do with sunlight reflecting off the moon and back to earth.
d. it's actually an optical illusion caused by the moon being high in the sky.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.