Justin and Katie are siblings that have the same parents. Justin has brown hair like his father. Katie has blonde hair like her mother. Which correctly states the cause of Justin and Katie's hair color? A. Katie only inherited chromosomes from her mother.
B. Katie and Justin inherited a different number of chromosomes.
C. Katie inherited a gene for hair color from only one of her parents.
D. Katie inherited a different combination of alleles than Justin did.

This map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century. brown shoes a decrease in percipitation, and blue shows an increase. the maps differ based on the predictive levels of green house emissions. the maps shows that northern area should get a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels.southern areas show a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels.to use these maps to prepare for natural disasters in the great plains, scientist need to ask? a. how many tons of emissions were used at the basis of the map.b. which types of fossil fuels are used in the great plains c. if you think the above is wrong it's probly c the question is cut off

Approximately what portion of the foods that we eat have been genetically modified in some way? a.fewer than 10% b.about 50% c.nearly 100%

Explain how scientists use geologic time to determine the age of landforms.