What is an ecosystem?
Two or more populations of organisms in their environment
All the organisms of the same or closely-related species
Two or more populations of organisms
What are animals that hunt and kill others for food called?
Primary consumer
Predator
Secondary consumers
What process do decomposers speed up?
Photosynthesis
Respiration
Decay
What do decomposers release onto dead matter to break it down?
Enzymes
Saliva
Carbon dioxide and water
Which of these is true for well functioning predator-prey cycles?
The number of prey increases at the same time as the number of predators
There are always more prey than predators
There are always more predators than prey
What type of traps catch small mammals?
Kick sampling
Sweep nets
Pitfall traps
If you were investigating species richness what would you be counting in a quadrat?
The number of different species
The percentage of a quadrat covered by one species
The number of times one species is present
What is a transect?
A square wire placed on the ground to count plants
An imaginary line used as a part of systematic sampling
A diagram that looks like a kite
What is the mode?
The average value
The middle number
The most common number
What carbon conversion occurs in respiration?
Glucose to carbon dioxide
Carbon dioxide to glucose
Fuel to carbon dioxide