Ducks Unlimited Test Bank 2024/2025
Exam Questions and Answers | A+
Score Assured
Which of the following best describes a pioneer species? - 🧠ANSWER
✔✔The first species to colonize an area in primary succession
Which of the following best describes respiration? - 🧠ANSWER ✔✔Intake
of oxygen to convert glucose to energy
Which of the following does NOT conduct nitrogen fixation? - 🧠ANSWER
✔✔Humans
Where is the phosphorus cycle primarily conducted? - 🧠ANSWER ✔✔In
soil and plants
Which of the following is NOT a category of wetland biome? - 🧠ANSWER
✔✔Tropical
In what year was the Clean Water and Air Act created? - 🧠ANSWER
✔✔1948
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
,Which of the following does Not influence an organisms niche? -
🧠ANSWER ✔✔Commensalism
According to the presentation, ecosystem management was broadened by
the establishment of which of the following in 1978? - 🧠ANSWER
✔✔Conservation Biology
Which of the following is known to cause primary succession? - 🧠ANSWER
✔✔Glacier movement
Select the positive ecological interactions between organisms - 🧠ANSWER
✔✔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? - 🧠ANSWER ✔✔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.
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
,Soil allowed grasses and flowering plants to grow. In this example, which of
these was most likely the pioneer species? - 🧠ANSWER ✔✔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. - 🧠ANSWER ✔✔True
Which of the following is true about chlorophyll? - 🧠ANSWER ✔✔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? - 🧠ANSWER ✔✔Broadleaf plants
and lower shrub vegetation
Which of the following is true regarding the ability for grasslands to
sequester carbon from the atmosphere? - 🧠ANSWER ✔✔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? - 🧠ANSWER
✔✔Only cutting the largest or most valuable tree species in an area
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, Which of the following is true about the Forest and Rangeland Planning
Act? - 🧠ANSWER ✔✔Monitors the effects of climate change on renewable
resources and managed lands
What is desertification? - 🧠ANSWER ✔✔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? -
🧠ANSWER ✔✔Legumes
Which of the following is a characteristic of the taiga? - 🧠ANSWER
✔✔Northernmost forests with seasonal climate including long winters and
short summers
Forty percent of the world's oxygen is produced in which of the following? -
🧠ANSWER ✔✔Tropical rainforest
A wetland sits in an area with seasonal flooding from snow melt, has
anaerobic soil, contains a build-up of dead vegetation in the water and is
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
4
STATEMENT. ALL RIGHTS RESERVED
Exam Questions and Answers | A+
Score Assured
Which of the following best describes a pioneer species? - 🧠ANSWER
✔✔The first species to colonize an area in primary succession
Which of the following best describes respiration? - 🧠ANSWER ✔✔Intake
of oxygen to convert glucose to energy
Which of the following does NOT conduct nitrogen fixation? - 🧠ANSWER
✔✔Humans
Where is the phosphorus cycle primarily conducted? - 🧠ANSWER ✔✔In
soil and plants
Which of the following is NOT a category of wetland biome? - 🧠ANSWER
✔✔Tropical
In what year was the Clean Water and Air Act created? - 🧠ANSWER
✔✔1948
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
1
STATEMENT. ALL RIGHTS RESERVED
,Which of the following does Not influence an organisms niche? -
🧠ANSWER ✔✔Commensalism
According to the presentation, ecosystem management was broadened by
the establishment of which of the following in 1978? - 🧠ANSWER
✔✔Conservation Biology
Which of the following is known to cause primary succession? - 🧠ANSWER
✔✔Glacier movement
Select the positive ecological interactions between organisms - 🧠ANSWER
✔✔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? - 🧠ANSWER ✔✔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.
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
,Soil allowed grasses and flowering plants to grow. In this example, which of
these was most likely the pioneer species? - 🧠ANSWER ✔✔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. - 🧠ANSWER ✔✔True
Which of the following is true about chlorophyll? - 🧠ANSWER ✔✔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? - 🧠ANSWER ✔✔Broadleaf plants
and lower shrub vegetation
Which of the following is true regarding the ability for grasslands to
sequester carbon from the atmosphere? - 🧠ANSWER ✔✔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? - 🧠ANSWER
✔✔Only cutting the largest or most valuable tree species in an area
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, Which of the following is true about the Forest and Rangeland Planning
Act? - 🧠ANSWER ✔✔Monitors the effects of climate change on renewable
resources and managed lands
What is desertification? - 🧠ANSWER ✔✔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? -
🧠ANSWER ✔✔Legumes
Which of the following is a characteristic of the taiga? - 🧠ANSWER
✔✔Northernmost forests with seasonal climate including long winters and
short summers
Forty percent of the world's oxygen is produced in which of the following? -
🧠ANSWER ✔✔Tropical rainforest
A wetland sits in an area with seasonal flooding from snow melt, has
anaerobic soil, contains a build-up of dead vegetation in the water and is
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
4
STATEMENT. ALL RIGHTS RESERVED
