Answers
Which of the following best describes a pioneer species? The first species to colonize an area in primary succession
Which of the following best describes respiration? Intake of oxygen to convert glucose to energy
Which of the following does NOT conduct nitrogen fixa-
Humans
tion?
Where is the phosphorus cycle primarily conducted? In soil and plants
Which of the following is NOT a category of wetland bio-
Tropical
me?
In what year was the Clean Water and Air Act created? 1948
Which of the following does Not influence an organisms
Commensalism
niche?
According to the presentation, ecosystem management
was broadened by the establishment of which of the fol- Conservation Biology
lowing in 1978?
Which of the following is known to cause primary succes-
Glacier movement
sion?
Select the positive ecological interactions between organ- Commensalism
isms Mutualism
Samantha is developing a management plan for an area
suffering a significant reduction of grasses and plants
which directly affects the viability of an endangered
species. Her plan involves an increase of primary pro- Sustainability
ducers to support long-term ecological balance and to
eliminate the requirement of human influence. Which of
the following best represents this management plan?
A volcano has erupted and has now cooled off to leave breaking it down and creating
bare rock. Over time, lichens have colonized on the rock, soil. Soil allowed grasses
,Lichens
, and flowering plants to grow. In this example, which of
these was most likely the pioneer species?
Nutrient flow is the natural process which provides for the
cycling of chemicals between biotic and abiotic factors in- True
cluding water, oxygen, carbon, nitrogen and phosphorus.
Which of the following is true about chlorophyll? Is required in order to perform photosynthesis
Grasslands are dominated by grasses and several species
Broadleaf plants and lower shrub vegetation
of forbs. Which of the following best describes a forb?
Grasslands recover quickly from drought or fire, allowing
Which of the following is true regarding the ability for
them to return to carbon sequestering far earlier than
grasslands to sequester carbon from the atmosphere?
other biomes
Which of the following best describes high-grading har- Only cutting the largest or most valuable tree species in an
vest? area
Which of the following is true about the Forest and Range- Monitors the effects of climate change on renewable re-
land Planning Act? sources and managed lands
Grasslands which undergo drought or demineralization
What is desertification?
and turn into a desert landscape
In order to minimize soil erosion and increase water re-
tention, Randy wants to plant a cover crop for his cotton
field without negatively affecting the fertility of the soil.
He knows cotton requires significant amounts of nitrogen Legumes
to grow, so he will need to choose a cover crop with low
nitrogen requirements. Which of the following cover crops
should Randy choose?
Northernmost forests with seasonal climate including long
Which of the following is a characteristic of the taiga?
winters and short summers
Forty percent of the world's oxygen is produced in which
Tropical rainforest
of the following?