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Ecology Flashcards | StudBud
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Ecology
Ecology
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1
Which of the following explains the role of plants in the carbon cycle?
Plants transfer oxygen in the atmosphere to fossil fuels
Plants transfer carbon in atmosphere to carbohydrates in biotic factors
Plants transport carbon dioxide in the atmosphere to groundwater
Plants transfer carbon in the groundwater to carbohydrates in biotic factor
2
Which term describes the variety of species in a certain area?
succession
genetic diversity
biodiversity
ecosystem
3
Which of the following do not contribute to the formation of biomes?
Wind and air currents
Animals present
Mountain ranges
Amount of sunlight
4
The primary factors affecting population growth include birthrate, deathrate, immigration, and
demography
density
geographic range
emigration
5
Which organism is the secondary consumer?
Plant
Insect
Frog
Hawk
6
What type of symbiosis is observed when an insect collects nectar from a flower?
Mutualism
Competition
Commensalism
Parasitism
7
Which of the following is not a biotic factor?
Bacteria
Tree
Water
Bird
8
The first organisms to repopulate an area affected by a volcanic eruption are called
pioneer species
primary producers
climax species
keystone species
9
Which two processes are responsible for removing and returning carbon dioxide to the atmosphere?
Photosynthesis and the Calvin Cycle
Cellular respiration and photosynthesis
Cellular respiration and fermentation
Osmosis and diffusion
10
Which scenario is an example of exponential growth?
Wildflowers grow in every available space in an abandoned field
A herd of deer grows rapidly, but quickly runs out of space
A disease enters a population and reduces the population size of beetles
New species move into an area without predators & outcompete native species
11
Select the correct order: largest to smallest
Biosphere, Ecosystem, Community, Population
Population, Species, Community, Ecosystem, Biosphere
Population, Community, Ecosystem, Biosphere
Biosphere, Community, Ecosystem, Population
12
What type of dispersion pattern occurs when organisms gather around a resource?
Clumped
Uniform
Random
Spaced out
13
A beaver builds a dam causing a river to turn into a lake where fish and amphibians increase in number. The beaver is a
predator
density-dependent limiting factor
primary consumer
keystone species
14
What is the correct order of species to colonize secondary succession?
moss/lichen, grass, bushes, deciduous trees, pine trees
grass, bushes, deciduous trees, pine trees
moss/lichen, grass, bushes, pine tree, deciduous trees
grass, bushes, pine tree, deciduous trees
15
Which of the following is not a density-dependent limiting factor?
Amount of precipitation
Disease
Competition
Predation
16
Which of these interactions result in negative consequences for at least one organism?
Parasitism
Predation
Competition
Commensalism
17
If the producers take in 10,000 joules of energy, how much energy will the tertiary consumers have?
1 joule
100 joules
10 joules
1,000 joules
