The picture below shows a boulder made of gneiss. Gneiss forms deep underground due to heat and pressure and has observable layers. Which type of rock is gneiss?

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

The production of cells during mitosis into specialized function is recombination or differentiation

Did you know that a blue wales tongue weighs more than an elephant?