Which of the following is a major source of biomass fuel in developing countries?
a. wood
b. leaves
c. corn
d. soybeans

All eukaryotic cells contain small bodies called

Which is a function of vascular tissue? a. to perform photosynthesis b. to transport water and nutrients c. to absorb minerals and sugar d. to interact with soil fungi

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