1. Explain how the observations of the amoebas and bacteria studied by Professor Kwang Jeon relate to the endosymbiotic theory. 2. Describe three properties of mitochondria and chloroplasts that support the endosymbiotic theory. Be sure to explain your answer.

3. Explain the endosymbiotic theory of the origin of eukaryotic cells. Be sure to explain your answer.

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

At which location in earth’s interior does the top density continue to increase as thickness decreases?

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.