the study of interactions of organisms and their environment
the living factors in an environment
the nonliving factors in an environment
where an organism lives
what an organism does
True or False: Different organisms can share the same habitat if they have a different niche.
True or False: Different organisms can share the same habitat if they have the same niche
the part of the earth where life exists
all the similar ecosystems that share the same characteristics
all the living and nonliving things and their interactions
all the living things that live together in an area
a group of similar organisms that live together
Fill in the blank: Two species who have the same requirements cannot blank in the same habitat.
when both species benefit
each partner in a species interaction
when one species benefits and the other is not affected
one species benefits and the other is harmed or affected
predator eats prey
Which is usually larger in predation: the predator or the prey?
parasites eat from host
Does the parasite want to kill its host?
Is a parasite always smaller than its host?
Competitive Exclusion Principle
States that When two species compete, the more fit species will win out and persist and the less fit species will lose or become extinct.
The flow of energy
What do the arrows represent in a food chain?
What is always at the top of every food chain?
process that makes glucose and oxygen and uses water and carbon dioxide
process that makes water and carbon dioxide and uses glucose and oxygen
By what process do plants make glucose and oxygen?
True or False: Everything uses the process of respiration.
True or False: Everything uses the process of photosynthesis.
What do plants convert light energy into?
1st Trophic Level
2nd Trophic Level
3rd Trophic Level
4th Trophic Level
Last Trophic Level
What percentage of energy is converted to a form we can't use when energy is passed on from one trophic level to another?
What percentage of energy is passed on as a form we can use?
Useful energy flows and decreases and matter is recycled
2 main parts of the food chain
What is the 90% of energy we can't use mostly converted to? What type of energy?
lots of food chains intertwined
Fill in the blank: Always use the blank trophic level that the organism could possibly be in when looking at a food web.
energy and matter
What two things do food chains show the flow of?
Pyramid of Energy
A pyramid that shows how the amount of energy decreases.
Pyramid of Numbers
A pyramid that shows how the number of organisms in each trophic level decreases.
Fill in the Blank: Exception of Pyramid of Blank: if the producer is much larger than the primary consumer.
Pyramid of Biomass
A pyramid that shows how the amount of biomass decreases throughout the trophic levels.
living material minus water
Fill in the Blank: Exception of Pyramid of Blank: if the producer has extremely rapid rate of reproduction.
whale and phytoplankton
Example of the exception of the Pyramid of Biomass(very rare)