WorksheetsFood Web, Food Chain, Energy Pyramid
Total questions: 30
Worksheet time: 3600secs
All food webs and food chains begin with _________________.
primary consumer
producers
secondary consumers
tertiary consumers
In an ecological pyramid, which type of organism always has the least amount of energy available?
Producers
Herbivores
Carnivores
Apex Predator
If there are 100 Kcal of energy available in the producers, how much energy would be available in the primary consumers?
10 Kcal
1 Kcal
100 Kcal
1000 Kcal
Which organism is the carnivore?
Which organism do the owl and the weasel compete for in the food web?
Hawk
Spider
Grasshopper
Shrew
How are primary consumers different from secondary consumers?
Primary consumers eat only plants; secondary consumers eat other consumers.
Primary consumers eat other consumers; secondary consumers eat only plants.
Primary consumers eat plants and other consumers; secondary consumers eat plants and decompose matter.
Primary consumers eat plants and decompose matter; secondary consumers eat plants and other consumers.
In the food web shown, who is the secondary consumer?
grass
mouse
rabbit
fox
What level consumer is the deer?
primary consumer
secondary consumer
tertiary consumer
producer
Living things in an ecosystem are known as
abiotic
biotic
Which organism needs to find its own food?
autotroph
hetertroph
organism
population
community
ecosystem
The ___ is the ultimate energy source for all living things.
moon
producer
sun
consumers
meat
What amount of energy is available at the next trophic level?
10 %
20%
50%
90%
What happens to the energy that is not available to the next trophic level
Becomes fire
It is destroyed
It is used or "LOST" as heat
All energy is available at all levels
Which organism is an omnivore in this food web?
snake
chipmunk
catepillar
bird
frog
What would happen if the herbivore population doubled?
chameleon population will suffer
caterpillar population decreases
Producers in the area may decrease
