The onion plant began as a single cell. That cell had X number of chromosomes. How many chromosomes are in each of the cells that you observed?

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

Aplant may open end close its stomata to prevent excess water loss and maintain

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?