1) Sovy se svými znaky podobají:

What is thought to have caused the mass extinction at the end of the cretaceous period?

What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink.b. the chloroplasts would produce more energy.

There are only about 250,000 known fossil species. true or false