How is sodium chloride used in diagram b ? Where are you likely to find this resource ?

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2

What do you think scientists face when classifying new organisms?