Na molecule of benzene, six carbon atoms are bonded together in a ring. each carbon atom is also bonded to . a)either one hydrogen atom or two hydrogen atoms. b)either two hydrogen atoms or three hydrogen atoms. c)one hydrogen atom. d)two hydrogen atoms

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

How does a gymnosperm prevent itself from pollinating the same tree

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above