I
These living things break down organic matter. E.g. bacteria and fungi are called these.
What are decomposers?
What is biotic factors
All of the species that live in the same area.
What is a community?
What is a food web?
A factor that takes population size into account.
What is a density-dependent factor?
A good sign of a healthy ecological system.
What is biodiversity?
An organism that lives on or in another organism and hurts it.
What is parasitism
Why is the amount of energy passed on to consumers decreasing at each level? What happens to it?
What is energy lost as heat, movement and undigested materials?
Which group of organisms always starts a food chain or web?
What is a producer?
a group of organisms of the same species that live in an environment
What is a population?
Organisms that rely on other organisms for their energy
What are consumers?
non living parts of an environment
What are abiotic factors?
If producers have 1000kJ of energy, how much energy will be passed on to the organisms that eat them?
What is 100kJ (10% rule)?
What is it called when different organisms are fighting for the same resource?
What is competition
Where an organism lives - includes both biotic and abiotic factors.
what is a habitat?
Growth rate that looks like the letter J.
What is exponential?
The thing that eats the thing that eats plants.
What is a secondary consumer?
The limit on a logistic growth model.
What is carrying capacity?
A jumping spider stalks and attacks a fly for food.
What is predation?
any relationship where two species live closely together
what is symbiosis
Synonym to producer
What is an autotroph?
In this case, one organism benefits, the other is neither helped nor harmed.
What is commensalism?
Give 3 examples of abiotic factors
What is temperature, light and water?
Draw the food chain:
Termites eat grass
Termites are eaten by echidna
Echidna are eaten by dingoes
What is grass -> termites -> echidna -> dingo
What organism would you expect to find most of in an environment?
A. First order consumers
B. Decomposers
C. Producers
D. Top order consumers
What is C. producers?