In fruit flies, eye color is sex-linked and red eyes are dominant to white eyes. Which is
not possible in a cross between a red-eyed male and a heterozygous female?

answer; i believe the correct answer is (sporophyte);

can you give me more to work here with plzs and you

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.