Abiotic & Biotic Factors
Competition & Predation
Symbiotic Relationships
Mutualism, Parasitism, Commensalism
Ecosystem Organization
100
Name a living part of an ecosystem.
Plants, animals, fungi, or bacteria
100
What is it called when two species fight for the same resource?
Competition
100
What is symbiosis?
A long-term interaction between two species
100
In mutualism, do both species benefit?
Yes
100
What is the smallest level of organization?
Organism
200
Name a non-living part of an ecosystem.
Water, sunlight, soil, or temperature
200
Give an example of a predator-prey pair.
Lion and zebra, hawk and mouse
200
Name the three types of symbiotic relationships.
Mutualism, parasitism, commensalism
200
How do bees and flowers benefit each other?
Bees get nectar; flowers get pollinated
200
What level includes all members of the same species in an area?
Population
300
Which abiotic factor is most important for plant growth?
Light
300
How does competition affect population size?
It can reduce population growth
300
Give an example of a mutualistic relationship
Clownfish and sea anemone 
300
In parasitism, who benefits?
The parasite
300
What level includes all populations living together?
Community
400
Give an example of a biotic factor that affects herbivores.
Plants or prey
400
What does it mean when organisms use the same resources in an environment?
They depend on the same things and must compete to survive.
400
Give an example of a parasitic relationship.
Tick on a dog 
400
In commensalism, does one species get harmed?
No
( Bonus * What happens in a commensalism relationship?*)
400
Give the correct order: organism, community, population, ecosystem.
Organism → Population → Community → Ecosystem
500
How do abiotic factors like water and temperature limit species?
They affect survival, growth, and reproduction
500
If two species occupy the same niche, what often happens?
One may die out or adapt
500
Give an example of commensalism
Barnacles on a whale 
or
Shark and remora fish 
500
Give a mutualistic relationship between humans and bacteria.
Gut bacteria helping digestion
500
If all the frogs in a pond ecosystem die, how might that affect the rest of the ecosystem?
Insects might increase since frogs eat them, and animals that eat frogs may lose a food source.