Abiotic vs. Biotic
Which is Biotic? Fungi or soil?
Fungi.
What is a producer?
An organism that makes it's own food.
What is competition?
Occurs when 2 organisms compete for the same limited resources in their habitat.
Population of organisms may experience _____ types of growth:
A.1 B.3
C.2 D.4
C.2
what is a carnivore??
eats only animals to survive
Is Deadwood Biotic or Abiotic?
Biotic?
What is a consumer?
An organism that obtains energy by feeding on other animals/organisms.
What is preditation?
One organism activeley hunts and kills another for food.
If a population rises above the carrying capacity the population will _______.
Decrease
Plants create their own food through _____
Photosynthesis
Can a biotic factor live without an abiotic factor?
no. (All living things require abiotic resources like water and oxygen/Co2).
What is a decomposer?
Organisms that break down dead material.
What is symbiosis?
Close relationship between living organisms (living together).
What is carrying capacity?
Number of organisms an environment can support.
what is an omnivore??
eats both plants and animals to survive
In a desert ecosystem, name an abiotic factor that serves as a primary "limiting factor" for the population size of most plants and animals?
Water?
What is the primary source of energy for almost all food webs?
What is the Sun.
What is mutualism?
Both organisms benifit from each other
If a population falls below the carrying capacity the population will increase. (True or False)
True
What feeds off of organisms that die?
Scavengers
True or False: A fallen, rotting log in a forest is considered an abiotic factor because it is no longer alive.
False.
What are the arrows in the food web represent?
The arrows point in the derection of the energy flow.
what is parasitism??
one organism benefits while the other is harmed
What is exponential growth (J-curve)?
Population grows without limits.
What is the chemical equation in word form for producers?
Carbon dioxide+water+Sun --> Glucose+Oxygen