#1. About how much of the absorbed light energy by the green plants becomes chemical energy within the producers tissues?
#2. Arrange the following types of ecosystems in terms of their net primary productivity in descending order, starting with the one being the most productive and last the least productive?
#3. Which of the following kingdoms contains species that can fix nitrogen?
#4. Mutualism is an interaction between two species in which
#5. Match the following terms with their definitions
#6. From the top carnivores energy is:
#7. The nodule in a plant root, where nitrogenfixing bacteria live, forms from cells of the
#8. Bacteria that live in the nodules of pea and beans belong to which of the following genera?
#9. Which of the following plants will enrich the soil with nitrogen?
#10. The carbon and hydrogen present in the bodies of animals in the forms of various compounds are released to the environment during the processes of
