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WorksheetsUnit 1-3 Test Review
Total questions: 41
Worksheet time: 41mins
Symbiosis where both parties benefit.
Commensalism
Parasitism
Mutualism
Symbiosis where one benefits and one is harmed.
Commensalism
Parasitism
Mutualism
Symbiosis where one benefits and the other isn't affected.
Commensalism
Mutualism
Parasitism
Which is an example of an abiotic component affecting a biotic component.
Low phosphorus content in soil limits the growth of vegetation.
A thick planting of ground cover reduces soil erosion on a hillside.
Plants release oxygen into the atmosphere during photosynthesis.
Which of the following is a characteristic of tropical rain forests?
Their soils are relatively poor in nutrients.
Their soils are typically high in pH.
They do not exhibit a great deal of species diversity.
Why is phytoplankton in the upper few hundred feet of water bodies.
They can mostly readily hide from predators there
Sunlight does not penetrate to great depths in water
They are benthic organisms
Which of the following is true of carbon as it cycles in nature?
Carbon compounds rarely exist in the gaseous state
Carbon dioxide is released during photosynthesis.
Carbon sinks include forests and oceans.
Which of the following best describes the process of leaching?
The falling of acid precipitation from the atmosphere to Earth's surface
Water percolating through soil, dissolving some of its material
The use of chemicals to reduce the amount of E. coli in wastewater
Approximately what percent of the water on Earth is freshwater?
75%
25%
2.5%
What is the ultimate source of energy for terrestrial ecosystems.
The sun
Nutrients in soil
Producers
Why are decomposers important?
They store carbon dioxide
They remove heavy metals
They recycle nutrients
If an island is closer to the mainland, how will this impact the biodiversity?
There will be a higher level of biodiversity here than an island that is further away.
There will be a lower level of biodiversity here than an island that is further away.
There will be no difference in biodiversity on islands based on distance to mainland.
Which of the following is NOT a factor that impacts ecological tolerance?
Temperature
pH
Humidity
Level of biodiversity
What is ecological succession?
A set of environmental conditions within which an organism can best survive
An organism's ability to adapt to its environment
A peak community where the organisms are stable
The process of change in the species structure of an ecological community over time
What stage of ecological succession is being shown?
Primary succession
Secondary succession
Tertiary succession
Climax community
True or False: A wildfire that destroys all organisms in the area would cause a climax community to have to undergo primary succession once more.
True
False
Which of the following is NOT considered to be a natural disruption to an ecosystem?
Volcanic eruption
Hurricane
Air pollution
Earthquake
Which ecosystem is the most biodiverse?
Temperate deciduous forest
Tropical rainforest
Boreal forest
Savanna
In a food web, what is another term for "top predator"?
Tertiary consumer
Climax consumer
Parasite
Apex predator
When a community is stable with little to no change, what level of ecological succession is taking place?
Primary succession
Secondary succession
Tertiary succession
Climax community
Which of the following is NOT a type of ecosystem service?
Cultural
Regulating
Recreational
Provisional
Which of the following variables increase population size?
Deaths
Emigration
Immigration
Small populations that lead to a greater likelihood of harmful alleles spreading in a population is a result of
metapopulation
genetic inbreeding
k-selected communities
This type of species puts energy into reproduction not survival.
r-selected
k-selected
s-selected
j-selected
This type of species has many offspring with little to no parental care.
k-selected
r-selected
s-selected
j-selected
Which type of survivorship curve represents an r-selected species?
Type I survivorship curve
Type II survivorship curve
Type III survivorship curve
Which type of survivorship curve represents an k-selected species?
Type I survivorship curve
Type II survivorship curve
Type III survivorship curve
Bacteria, algae, and dandelions are an example of
r-selected species
k-selected species
s-selected species
This type of species population remains close to carrying capacity (k) over long periods of time.
r-selected
k-selected
s-selected
This type of species population is controlled by density-dependent factors
r-selected
k-selected
j-selected
humans, polar bears, and elephants are an example of
r-selected species
k-selected species
j-selected species
Which type of survivorship curve represents animals that have constant mortality?
Type I
Type II
Type III
Which type of survivorship curve represents organisms that produce many offspring that mainly die early in life
Type I
Type II
Type III
Which of the following is not a characteristic of rapidly growing populations?
Short generation time
Long length of reproductive life
Low fecundity
Reproduce early in life
The definition of fecundity is...
number of offspring
amount of generation time
the carrying capacity
exponential growth
A J-curve represents
exponential growth
logistic growth
no growth
When a population goes over the carrying capacity this is known as
oscillation
overshoot
dieback
exponential
As a population reaches carrying capacity what happens to mortality
increases
decreases
As a population reaches carrying capacity what happens to fecundity?
Increases
decreases
Which type of species would you expect to have a s-curve graph?
k-selected
r-selected
s-selected
When a population rises and falls in a predictable pattern this is known as what type of fluctuation
stable
irrupt
cyclic
irregular
