CORRECT Answers
1. In what year was the Clean Water and Air Act created? 1948
2. What does NOT influence an organism's niche/sur- Commensalism- one ben-
vival? efits and the other derives
neither benefit nor harm
3. According to the presentation, ecosystem manage- Conservation Biology
ment was broadened by the establishment of which
of the following in 1978?
4. Which of is known to cause primary succession? Glacier Movement
5. What are positive ecological interactions between or- Commensalism and Mu-
ganisms. tualism
6. What conducts nitrogen fixation? Peanuts, Algae and Nitro-
gen- fixing bacteria. Hu-
mans DO NOT conduct ni-
trogen fixation.
7. Which of the following best describes respiration? Intake of oxygen to con-
vert glucose to energy
8. Where is the phosphorus cycle primarily conducted? In soil and plants
9. Which of the following is NOT a category of wetland Tropical
biome?
10. How would you best describe a pioneer species? The first species to col-
onize an area in primary
succession
11. What can influence an organism's niche/survival? Competition, Mutualism
and Parasitism.
,12. What is mutualism? symbiosis that is benefi-
cial to both organisms in-
volved.
13. What is parasitism? One organism benefits
and the other is harmed
14. What is primary succession? Succession that begins in
an area with no remnants
of an older community.
The first to find habitat in
an area.
15. What wetlands is dominated by emergent vegetation? Marshes
16. A large plot of land in a grassland ecosystem was con- Secondary succession
verted for agriculture. After four decades of agricul-
tural use the land was abandoned and began to revert
to its original grassland state. This is an example of
which of the following?
17. In what year was the Federal Water Pollution Control 1948
Act established?
18. Denitrification is an essential step in which of the fol- Nitrogen
lowing cycles?
19. What is true about chlorophyll? It is required in order to
perform photosynthesis
20. Organisms do NOT require nutrients, or chemical sub- Sleep
stances, during what phase?
, 21. Organisms require nutrients, or chemical substances, Growth, Maintenance and
during what phases? Reproduction
22. Grasslands are dominated by grasses and several Broadleaf plants and low-
species of forbs. Which of the following best describes er shrub vegetation
a forb?
23. Grassland Habitat
24. Forests are responsible for storing large amounts Trees release carbon
of carbon. However, there are some cases in which when decaying, so when
forests can also release significant amounts of carbon areas experience defor-
into the atmosphere. When does this typically occur? estation large amounts of
a forest's sequestered car-
bon will be released back
into the atmosphere
25. Which is a true statement about non-tidal marshes? They occur in poor-
ly draining low places
and along boundaries of
freshwater sources
26. What best describes high-grading harvest? Only cutting the largest or
most valuable tree species
in an area
27. What percent of forests remain in the United States? 33%
28. What is NOT a good reason for conducting a pre- Preventing wildlife from
scribed burn? entering unwanted areas.
As this disrupts natural
processes.
29.