energy pyramids
Which level of an energy pyramid contains the most energy?
bottom
Which organism has no natural predators?
apex predators
What more accurately describes the complex feeding relationships within an ecosystem? Food chains or food webs
food webs
True or False - there are more apex predators in an ecosystem than secondary consumers.
false
All organisms at the bottom of an energy pyramid are ______.
producers
______________ break dead or decaying matter down into nutrients that can be recycled in the ecosystem.
Decomposers
Name an example of a decomposer
fungi
bacteria
worm
List examples of producers
grains
grass
berries
carrots
No energy transfer is 100% efficient. Some energy will always be lost as ________________.
heat
All primary consumers are ____________________.
herbivores
What is an animal that is hunted by a predator called?
prey
If foxes were removed from this food chain, what population would increase?
carrots--> rabbits--> foxes
rabbits
Primary consumers are the _______________ consumers in an energy pyramid.
first
Organisms that cannot make their own food by photosynthesis and have to eat other organisms for energy are called ________.
consumers
What is the term for an organism that uses energy from the sun during photosynthesis?
producer
If a disease killed all the grains in this ecosystem, which organisms would be affected?
grains--->mice--->owls
mice and owls
Why is energy lost during cellular respiration important to us?
It keeps our body temperature at 98.6o.
What organisms get energy from all trophic levels?
decomposers
How could you best describes the relationship between an herbivore and a producer?
An herbivore obtains energy from a producer for growth, repair, movement, and reproduction.
List a food chain that could shows the flow of energy in the Yellowstone National Park ecosystem?
Sun → Grass → Elk → Gray wolf