Identify a feature of the Whirlpool Galaxy that is visible in all or several types of light. Explain what this means.

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

What is the difference between bacterial infections and viral infections?

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.