pollen develops from the mitotic division of microspores. given this information, to which specific stage in a heterosporous life cycle does pollen belong

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

What element is able to combine with itself and hydrogen to form large molecules ?

Isotopes of the same element have differ in their