About this Study Set
This study set covers Biology through
18 practice questions.
A challenging assessment of biological interactions, environmental niches, and habitat-specific adaptations. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Advanced Animal Ecology and Habitat Dynamics study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which process describes the migration of nutrients from the nutrient-rich deep ocean to the surface in upwelling zones, supporting high marine productivity?
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A
Ekman transport
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B
Thermohaline circulation
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C
Coriolis deflection
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D
Hadley cell convection
2
In the context of the tundra biome, what is the specific term for the layer of soil that remains frozen year-round, limiting deep-root vegetation?
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A
Gleysol
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B
Permafrost
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C
Cryosol
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D
Lithosol
3
Which Australian marsupial is considered an 'ecosystem engineer' due to the extensive, climate-controlled burrow systems it constructs?
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A
Greater Bilby
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B
Common Wombat
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C
Long-nosed Bandicoot
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D
Yellow-footed Rock-wallaby
4
What is the primary factor that restricts the distribution of mangrove forests to tropical and subtropical coastal zones?
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A
Salinity of the soil
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B
Low nutrient availability
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C
Temperature sensitivity
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D
Tidal amplitude
5
Which evolutionary adaptation allows xerophytes in arid habitats to minimize transpiration during the day?
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A
C4 photosynthesis
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B
CAM photosynthesis
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C
C3 photosynthesis
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D
Photorespiration
6
The 'competitive exclusion principle' states that two species competing for the exact same limiting resource cannot coexist at constant population values. Who proposed this?
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A
Charles Darwin
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B
Alfred Russel Wallace
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C
Georgy Gause
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D
Robert MacArthur
7
In temperate deciduous forests, which mechanism is primarily responsible for the rapid cycling of nutrients from leaf litter back into the soil?
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A
Photolysis
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B
Mycorrhizal fungal networks
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C
High precipitation leaching
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D
Rapid vertebrate herbivory
8
Which group of organisms serves as the primary base of the food web in deep-sea hydrothermal vent communities?
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A
Chemosynthetic bacteria
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B
Photosynthetic phytoplankton
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C
Detritivores
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D
Filter-feeding zooplankton
9
What defines an 'obligate' inhabitant of an extreme environment like a hypersaline lake?
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A
An organism that can tolerate salt but prefers fresh water
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B
An organism that requires high salinity to survive
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C
An organism that migrates to avoid salinity spikes
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D
An organism that uses salt for camouflage
10
In which habitat would you predominantly find plants exhibiting 'drip tips' on their leaves, an adaptation to high rainfall?
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A
Savanna
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B
Boreal forest
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C
Tropical rainforest
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D
Temperate grassland
11
What is the ecological term for the total range of environmental conditions and resources that a species can theoretically occupy?
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A
Realized niche
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B
Fundamental niche
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C
Habitat range
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D
Spatial distribution
12
Which phenomenon describes the increase in concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain?
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A
Bioaccumulation
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B
Biomagnification
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C
Eutrophication
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D
Nitrogen fixation
13
What is the primary limiting factor for primary productivity in most open-ocean (pelagic) ecosystems?
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A
Carbon dioxide levels
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B
Availability of iron or nitrogen
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C
Water temperature
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D
Solar radiation intensity
14
Which evolutionary strategy involves a species producing many offspring with a low probability of survival to adulthood?
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A
K-selection
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B
R-selection
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C
Iteroparity
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D
Semelparity
15
What is the term for an animal that maintains a constant internal body temperature regardless of the ambient environmental temperature?
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A
Poikilotherm
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B
Ectotherm
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C
Endotherm
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D
Heterotherm
16
Which terrestrial biome is characterised by distinct wet and dry seasons and is dominated by grasses with scattered drought-resistant trees?
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A
Steppe
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B
Taiga
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C
Savanna
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D
Chaparral
17
What characterizes the 'photic zone' of a lake or ocean?
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A
The zone where photosynthesis occurs
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B
The zone where aphotic organisms reside
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C
The zone of highest pressure
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D
The sediment-water interface
18
Which of the following is an example of an 'allochthonous' energy source in a stream ecosystem?
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A
Algal growth on rocks
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B
Leaf litter falling from riparian trees
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C
Aquatic macrophyte production
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D
Dissolved organic carbon produced in-stream
