Explain how a 4-H group in rural New Mexico might use biotechnology techniques to improve the wool quality of the sheep on the nearby Navajo reservation.

What role do traits play in affecting an organisms ability to reproduce? finches

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?