Food Webs
Energy in an ecosystem originates from the
sun
Organisms that obtain energy through photosynthesis
producers
Matter _______ in an ecosystem because it is used over and over again.
cycles
Biotic factors are _____________.
Living/Non-living
living
Which food chain is correct? How do you know?
sun-->grass-->rabbit
grass-->rabbit-->bacteria
sun-->grass-->rabbit
All energy originates from the SUN!
Organisms that obtain energy by consuming other organisms
consumers
In what process do plants convert carbon dioxide and water into glucose and oxygen?
photosynthesis
Abiotic factors are __________.
Living/Nonliving
Nonliving
Energy from the sun is captured by __________.
Options: consumers, producers, decomposers
producers
organisms that eat only plants
(2 names- think about their place on a food pyramid)
herbivores
primary consumers
After photosynthesis occurs, what will the product of oxygen be used for?
Animals and other resperating organisms will use the oxygen for cellular respiration.
Soil, air, and water are __________.
Biotic/Abiotic
abiotic
Energy __________ because it does not return to the sun.
flows
an organism that would eat a hamburger with lettuce on it
omnivore
What gas do plants release during photosynthesis?
oxygen
Plants and animals are ________.
Biotic/Abiotic
Biotic
arrows in a food web show us _______.
the directional flow of energy/ who receives the energy
an organism that receives its energy by breaking down dead organisms through chemical processes
decomposers
The water cycle shows how what two types of atoms are recycled in our ecosystem over and over?
H2O= Hydrogen and Oxygen
Bones from a dead animal are ______ because__________.
Biotic/Abiotic because______.
Biotic because they came from something that was once alive.