Explain how human chromosomes 13 can be composed of just two molecules but have so many atoms? What are those two molecules? How are they bonded to each other?

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?