What statement is true?
a diploid organism most often has two alleles for a trait.
for a given gene, one allele is always dominant; the other always recessive.
there are two different alleles for all genes.
every trait is controlled by its own gene.

Me . based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi