NEW
Font size
WorksheetsEcology Post-Assessment
Total questions: 40
Worksheet time: 20mins
An example of a primary consumer is a(n)
omnivore
carnivore
herbivore
tertiary consumer
Large areas of the African rainforest have been cut down. This results in
reduced photosynthesis
reduced transpiration
a decrease in biodiversity
all of these
Invasive species often thrive in foreign ecosystems because
they always have longer life spans
they have evolved to develop adaptations specific to the ecosystem
they have less competitors relative to native species
they have natural predators in the foreign ecosystem
Biomes are
organisms that can reproduce together
many members of a species
organisms living in the same area
groups of similar ecosystems
Which of the following is a greenhouse gas that is contributes to global warming?
ozone
nitrogen gas
hydrogen gas
carbon dioxide
An ecological niche is
the unique role the species has in its environment
the species that an organis is classified as
the biome that the species lives in
the community that the species belongs to
When a population has inhabited an areas for a long time and the population size has stabilized due to resource limitations
density independence occurs
predation decreases
carrying capacity has been reached
an ecological niche has been established
All of the following are abiotic factors EXCEPT
soil
minerals
water
grass
Biodiversity is
a dramatic increase in a population over a short period of time; j-curve
a stable community that no longer goes through major ecological changes
largest number of individuals in a population that given environment can support
variety of life in the world or in a particular habitat or ecosystem
What type of growth model is this
logistic growth model; s-curve
type III curve
exponential growth model; j-curve
type I growth
A species that plays the most significant role in determining the structure of its ecological community is
the largest species
the oldest species
a keystone species
a trophic cascade
This is what happens as a population approaches carrying capacity and individual organisms from the population leave and go to a new area where they can find enough resources for survival and reproduction
competition
predation
immigration
emigration
What is the approximate carrying capacity for Species 5?
1000
1500
2000
2500
A tape worm and cat have this type of relationship
mutualism
competition
parasitism
commensalism
Red-billed Oxpeckers are birds that often feed on parasites that infest impala. This is an example of
commensalism
mutualism
competition
neutralism
Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.
mutualism
parasitism
predation
commensalism
One way to measure the size of a population in in terms of
population density
population
emigration
carrying capacity
Which limiting factor would increase due to the number of individuals in a population?
disease
births
natural disasters
unusual weather
What kind of factor is predation?
Density-independent
Density-dependent
What kind of factor is temperature?
Density-independent
Density-dependent
In a predator/prey relationship, which of the following statements is true?
As the population of prey decreases, the population of predators increase
As the population of prey increases, the population of predators decrese
The population size of prey does not affect the population size of predators
As the population of prey decreases, the population of predators decrease
What is one role plants play in the water cycle?
Bacteria on the roots of plants fix nitrogen from the atmosphere so the plants can use it.
Plants absorb oxygen for photsynthesis.
Plants release water vapor through transpiration.
What is the difference between an organism's habitat and its ecological niche?
Ecological niche and habitat are completely unrelated
Habitat is where they live; niche is how they live
Ecological niche is one of the details within the habitat
Habitat is how they live, niche is where they live
What is the difference between climate and weather?
Climate averages the weather conditions in a specific place over a long period of time, while weather describes the state of the atmosphere at a specific moment in time.
Weather averages the weather conditions in a specific place over a long period of time, while climate describes the atmosphere at a specific moment in time.
There is not a difference between climate and weather.
Climate describes the weather condition at night, while weather describes the conditions during the daytime.
Oposums and coral snakes live in South Carolina. Opossums play dead. Coral snakes curl their tails into a tight spiral if an enemy is near. How are they similar
They use their bodies to attack predators
They have ways to protect themselves
They spend a lot of time in water
They both have fur
Some trees shed their leaves in time for winter. Why is this adaptation useful?
The trees blend into their environment to hide.
The trees take in more sunlight through their branches.
The trees attract animals to spread their seeds
The trees save energy during the darker, colder months
Which two physical changes are essential processes in the water cycle?
Mixing and separating
Evaporating and condensation
Ebbing and flowing
Oxidation and reduction
What is it called when plants give off water vapor as a waste?
Sublimation
Transpiration
Evaporation
Condensation
Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?
Surface tension
Nonpolar
Solvent
Adhesion
Why are the producers at the base of the trophic pyramid?
There are more plants than animals
They begin the flow of energy in an ecosystem
They create all of the energy and therefore have the most energy of all the trophic levels
All of these
What is the original source of energy in a food web/chain?
Sun
Soil
Plants
Bacteria
What type of organisms is at the beginning of every food chain?
Producer
Predator
Carnivore
Herbivore
If you are testing the buoyancy (ability to float) of a cotton ball and you leave one plain, cover one half in oil, and cover the third in oil completely then place each in water, what is the dependent variable?
Ability to float
Water
Amount of oil
Cotton balls
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: apple juice, or milk. Each plant has the same amount of soil, sunlight and listens to the same music. In this investigation, the independent variable is...
sunlight
type of liquid
plant
music
This is the group that we will compare our experimental group to. This group stays "normal."
experimental group
weird group
constant group
control group
Multiple organisms of the same species describes a
organism
population
ecosystem
community
Which is the correct order of the levels of organization from the simple to complex?
Ecosystem > community > population > organism
Ecosystem > biosphere > community > organism
Community > biome > species > biosphere
Organism > population > community > ecosystem
What is the difference between chemosynthesis and photosynthesis?
Chemosynthesis produces only sugar while photosynthesis produces only water
Photosynthesis produced carbon dioxide, while chemosynthesis produces oxygen
Chemosynthesis uses light, while photosynthesis uses salt.
Photosynthesis uses light, while chemosynthesis uses chemicals such as hydrogen sulfie.
Which animal is an apex predator?
Hawk
Snake
Grasshopper
Mouse
An organism that obtains energy from eating only meat.
Carnivore
Herbivore
Producer
Omnivore
