In fruit flies, eye color is a sex-linked gene carried on the X chromosome. Red is dominant and white is recessive.
Cross a male with red eyes with a female that has white eyes.

Find the genotypes and phenotypes for each.

According to the cladogram, which organisms have roundworms as a common ancestor?

The function of the excretory system is to control homeostasis and

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?