1. Do Now
Please take out your study guides, and circle the topics you are still confused on.

2. Biodiversity and Nitrogen Cyle Jeopardy!

3. What are the three types of biodiveristy?

6. If a disturbance were to occur in an ecosystem, which of the following ecosystems would be vulnerable to extinctions?
Island Ecosystem
Continental Ecosystems
Marine Ecosystems
Tropical Ecosystems

7. What are two ways we can restore an ecosystem?

8. 3.
Which of the following would be most effective in slowing the loss of biodiversity?
freezing fertilized eggs of endangered animals in case the species become extinct in the wild
setting aside small plots of land in a variety of ecosystems, such as forests, grasslands, and marshes
creating large parks/preserves in biodiversity hotspots
requiring every country to maintain a seed bank

9. All of the following are consequences of human pollution except ________.
A. Loss of habitat
B. Eutrophication
C. Invasive species
D. Acid precipitation

10. What is the molecular formula for Ammonium?

11. The extinction rate of terrestrial and freshwater species is currently higher than the extinction rate of marine species. What is the most likely reason for this?
A. Human activities have a greater impact on terrestrial and freshwater ecosystems
B. There are no economic incentives for humans to use ocean resources
C. Marine organisms have had a longer time to adapt to their environment.
D. The oceans have a greater area than land and freshwater ecosystems combined.

12. Sulfur and nitrogen compounds react with water and other substances in the air to form sulfuric acid and nitric acid. This results in…..
Eutrophication
Acid Precipitation
Biomagnification
Bioaccumulation

13. Looking at the picture below, which one would have the greatest amount of biodiversity?

14. Which of the following organisms would be expected to have the highest concentration of mercury pollution in its tissues?
primary producers such as aquatic plants, phytoplankton, and algae
B. primary consumers, such as zooplankton
C. the tertiary consumers, such as tuna and sharks.
D. the secondary consumers, such as sardines and herring

15. The use of microorganisms to degrade chemical pollutants is called...
Introduced Species
Biological Augmentation
Biomagnification
Bioremediation

16. Which is the renewable energy source?
Burning of coal
Growing of corn
Propane Gas Grill
Natural Gas Furnace

17. Pharmaceuticals and agriculture products are examples of…..
Direct Economic Value
Indirect Economic Value
Sustainable Use
Habitat Destruction

18. The removing of wolves from Yellowstone National Park caused….
Overexploitation of other species
Destruction of the entire habitat
The habitat to become fragmented
Disruption of the entire habitat

19. Eutrophication is caused by runoff containing nutrients that does what to kill fish in a lake?
Algae overproduce and die; use up all the oxygen so fish die.
Algae overproduce and crowd out fish and other species
Fish overproduce and eat all possible sources of food then starve
Algae overproduce oxygen, which is toxic to fish in high quantities.

20. Which process describes nitrogen fixation?
A. animals eat plants containing nitrogen and return it to the soil through urination
B. bacteria take nitrogen from the air and convert it to a form usable by plants
C. organisms die and are decomposed into ammonia in the soil
D. plants take nitrogen from the air and store it in their roots

21. Which process returns nitrogen to the food web?
A. decomposition
B. denitrification
C. nitrification
D.assimilation
E. ammonification

23. Conversion of NH3 to NO2 and then NO3 is called:
Nitrification
Denitrification
Nitrogen Fixation
Ammonification

26. Double Jeopardy!!
In an ecosystem, there are 1000 phytoplankton, 100 zooplankton, 20 minnows, 4 eels, and 1 osprey. A test was done, and determined that there was a total of 30 ppm of DDT in the tissues of the phytoplankton. Create a pyramid that demonstrates that average amount of toxins per organism at each trophic level.