This isn't an answer choice question, but i hope you guys can still. i just have a question on recessive traits. my question is: what must be true about the parents’ genes for recessive traits to occur in the offspring?

Asnail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup.

The shift of a vehicle's weight around its center of gravity is known as

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis