An essential material for photosynthesis is/are

chloroplasts

nitrogen

chlorophyll

? ?

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

Which of the following forest management practices is best for reestablishing areas of forest?