Ducks Unlimited Test Bank
Exam Study Guide: GRADED
A+. Questions and Verified
Answers. Latest 2026 Update
Which of the following best describes a pioneer species? - Ans✔✔-The first
species to colonize an area in primary succession
Which of the following best describes respiration? - Ans✔✔-Intake of oxygen to
convert glucose to energy
Which of the following does NOT conduct nitrogen fixation? - Ans✔✔-Humans
Where is the phosphorus cycle primarily conducted? - Ans✔✔-In soil and
plants
Which of the following is NOT a category of wetland biome? - Ans✔✔-Tropical
In what year was the Clean Water and Air Act created? - Ans✔✔-1948
Which of the following does Not influence an organisms niche? - Ans✔✔-
Commensalism
,According to the presentation, ecosystem management was broadened by the
establishment of which of the following in 1978? - Ans✔✔-Conservation
Biology
Which of the following is known to cause primary succession? - Ans✔✔-Glacier
movement
Select the positive ecological interactions between organisms - Ans✔✔-
Commensalism
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 producers to
support long-term ecological balance and to eliminate the requirement of
human influence. Which of the following best represents this management
plan? - Ans✔✔-Sustainability
A volcano has erupted and has now cooled off to leave bare rock. Over time,
lichens have colonized on the rock, breaking it down and creating soil. Soil
allowed grasses and flowering plants to grow. In this example, which of these
was most likely the pioneer species? - Ans✔✔-Lichens
Nutrient flow is the natural process which provides for the cycling of chemicals
between biotic and abiotic factors including water, oxygen, carbon, nitrogen
and phosphorus. - Ans✔✔-True
, Which of the following is true about chlorophyll? - Ans✔✔-Is required in order
to perform photosynthesis
Grasslands are dominated by grasses and several species of forbs. Which of the
following best describes a forb? - Ans✔✔-Broadleaf plants and lower shrub
vegetation
Which of the following is true regarding the ability for grasslands to sequester
carbon from the atmosphere? - Ans✔✔-Grasslands recover quickly from
drought or fire, allowing them to return to carbon sequestering far earlier than
other biomes
Which of the following best describes high-grading harvest? - Ans✔✔-Only
cutting the largest or most valuable tree species in an area
Which of the following is true about the Forest and Rangeland Planning Act? -
Ans✔✔-Monitors the effects of climate change on renewable resources and
managed lands
What is desertification? - Ans✔✔-Grasslands which undergo drought or
demineralization and turn into a desert landscape
In order to minimize soil erosion and increase water retention, 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 to grow, so
he will need to choose a cover crop with low nitrogen requirements. Which of
the following cover crops should Randy choose? - Ans✔✔-Legumes
Exam Study Guide: GRADED
A+. Questions and Verified
Answers. Latest 2026 Update
Which of the following best describes a pioneer species? - Ans✔✔-The first
species to colonize an area in primary succession
Which of the following best describes respiration? - Ans✔✔-Intake of oxygen to
convert glucose to energy
Which of the following does NOT conduct nitrogen fixation? - Ans✔✔-Humans
Where is the phosphorus cycle primarily conducted? - Ans✔✔-In soil and
plants
Which of the following is NOT a category of wetland biome? - Ans✔✔-Tropical
In what year was the Clean Water and Air Act created? - Ans✔✔-1948
Which of the following does Not influence an organisms niche? - Ans✔✔-
Commensalism
,According to the presentation, ecosystem management was broadened by the
establishment of which of the following in 1978? - Ans✔✔-Conservation
Biology
Which of the following is known to cause primary succession? - Ans✔✔-Glacier
movement
Select the positive ecological interactions between organisms - Ans✔✔-
Commensalism
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 producers to
support long-term ecological balance and to eliminate the requirement of
human influence. Which of the following best represents this management
plan? - Ans✔✔-Sustainability
A volcano has erupted and has now cooled off to leave bare rock. Over time,
lichens have colonized on the rock, breaking it down and creating soil. Soil
allowed grasses and flowering plants to grow. In this example, which of these
was most likely the pioneer species? - Ans✔✔-Lichens
Nutrient flow is the natural process which provides for the cycling of chemicals
between biotic and abiotic factors including water, oxygen, carbon, nitrogen
and phosphorus. - Ans✔✔-True
, Which of the following is true about chlorophyll? - Ans✔✔-Is required in order
to perform photosynthesis
Grasslands are dominated by grasses and several species of forbs. Which of the
following best describes a forb? - Ans✔✔-Broadleaf plants and lower shrub
vegetation
Which of the following is true regarding the ability for grasslands to sequester
carbon from the atmosphere? - Ans✔✔-Grasslands recover quickly from
drought or fire, allowing them to return to carbon sequestering far earlier than
other biomes
Which of the following best describes high-grading harvest? - Ans✔✔-Only
cutting the largest or most valuable tree species in an area
Which of the following is true about the Forest and Rangeland Planning Act? -
Ans✔✔-Monitors the effects of climate change on renewable resources and
managed lands
What is desertification? - Ans✔✔-Grasslands which undergo drought or
demineralization and turn into a desert landscape
In order to minimize soil erosion and increase water retention, 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 to grow, so
he will need to choose a cover crop with low nitrogen requirements. Which of
the following cover crops should Randy choose? - Ans✔✔-Legumes
