WorksheetsPrinciples of Ecology
Total questions: 34
Worksheet time: 8hrs 20mins
What type of organism uses sunlight to make food?
Heterotroph
Detritivore
Autotroph
Carnivore
True or False: Omnivores eat plants and animals.
True
False
In which direction does energy flow through an ecosystem?
Opposite directions
One direction
Two directions
All of the above
What is photosynthesis?
A food chain
A process that uses sunlight, water, and nutrients to make glucose
When an animal dies
None of the above
Which type of heterotroph eats plants and animal remains?
Herbivore
Carnivore
Detritivore
All of the above
How much of the atmosphere is made up of nitrogen?
20%
80%
78%
12%
What is Ecology?
The study of interactions among organisms and between organisms and their environment
The study of animals
The study of plants
The study of producers
Which of the following is considered an Apex predator?
Deer
Tree
Wolf
Squirrel
What is an autotroph?
Organism that eats other organisms
Organism that makes its own food
Organism that shops at Safeway
How are plants able to process nitrogen?
Using their roots
Using a special bacteria that "fixes" nitrogen
By asking nicely
Why are animals unable to use nitrogen?
They don't want to.
They don't need it.
They cannot process it.
Chemosynthesis is a process used by ________________ to capture chemical energy without sunlight.
Carnivores
Heterotrophs
Autotrophs
Herbivores
What is a food web?
Food that has webs in it
A pyramid showing how energy moves from one level to the next
A model that shows possible feeding relationships
Autotrophs that capture chemical energy
What type of teeth are typically used for consuming meat?
Incisors
Molars
Premolars
Canines
What is an example of an omnivore?
Human
Cow
Mountain Lion
Deer
What is the main energy source in most ecosystems?
The moon
The sun
Water
Energy
Which of the following is not a type of decomposer?
Phytoplankton
Bacteria
Fungus
Invertebrates
The process of evaporation is...
Turning liquid into water
When rain is not absorbed by the soil
When water is heated and turns into gas form
When water condenses into droplets
True or False: The atmosphere plays a large role in the phosphorous cycle.
True
False
What is an ecological pyramid?
How matter and energy move through ecosystems
Diagram that shows the amount of energy or matter at each trophic level
Series of steps showing which organisms transfer energy by eating and being eaten
Can all organisms use nitrogen?
Yes
No
What is a carrying capacity?
The minimum population that an environment can support with available resources
The maximum population that an environment can support with available resources
The number of organisms of the same species that live in a particular area at the same time.
What do Ecologists do?
Study eco-friendly ways to help the environment
Investigate crimes
Study the flow of energy through communities
None of the above
Organisms that make their own food are called _______________.
Consumers
Chefs
Composers
Producers
Which is NOT an example of organisms that use Chemosynthesis?
Bacteria found in volcano vents
Bacteria in hot springs
Bacteria in tidal marshes
Bacteria in cheese
Which of the following is not an example of a detritivore?
Shark
Mite
Crab
Worm
In an ecosystem, energy flows from the sun or chemical compounds to autotrophs (producers) to the different __________________.
producers
heterotrophs
autotrophs
autobots
Which of the following organisms is the producer in a marine food chain?
zooplankton
squid
phytoplankton
fish
Which type of organism is at the bottom of an ecological pyramid?
producers
primary consumers
secondary consumers
tertiary consumers
Why are food chains generally limited to 3 or 4 levels?
Because there are not enough consumers.
Because energy is lost at each level.
Because there are not enough producers.
Because there is not enough food.
In a typical ecosystem, are there more producers, consumers, or apex predators?
producers
consumers
apex predators
What is transpiration?
Water droplets falling to the ground
Evaporation of water from plants
When water condenses into clounds
When water cannot be absorbed into the ground
Which of the following is NOT a biological process that moves carbon?
respiration
photosynthesis
decomposition
recycling
Which "sphere" does not play a role in the phosphorous cycle?
biosphere
lithosphere
hydrosphere
atmosphere
