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Worksheetsecosystem-2
Total questions: 25
Worksheet time: 13mins
The study of the interrelationships of living organisms and their environment is:
ecosystem
environment
ecology
biology
What is the definition of a community?
Two or more species of organisms in their environment
The interaction between living organisms and their environment
All the organisms of the same or closely-related species
Two or more populations of organisms
Here is a woodland food chain.
Tree → Caterpillars → Sparrow → Hawk
Name one carnivore in this food chain.
caterpillars
sparrow
hawk
sparrow and hawk
In the following food chain, which organism is the secondary consumer? grass ------> rabbit -------> snake ------> hawk
grass
rabbit
snake
hawk
Which of the following is an abiotic factor in an ecosystem?
Bird
tree
rock
deer
Mushrooms and other fungi are responsible for breaking down dead organic matter. In the ecosystem, they are called
Producers
consumers
decomposers
scavengers
On what trophic level would you find organisms that use the sun's energy directly to make their own food?
1
2
3
4
Lichen is a symbiotic decomposer that attaches itself to trees and slowly breaks them down. They obtain nutrients from the tree, allowing them to survive and reproduce. What type of relationship is this?
Predator-prey
mutualism
parasitism
competition
Which of the following organisms is an autotroph?
Algae
bear
a cheetah
a fish
Nonliving parts of the environment such as soil, water, sunlight.
Decomposer
biotic
abiotic
scavenger
An organism that uses light energy to make its own food.
Consumer
parasite
host
autotroph
All the living things in an environment such as bacteria, plants, and animals.
Biotic
food chain
limiting factors
autotrophs
An organism that survives by eating animals.
Prey
producer
carnivore
autotroph
All the different populations that live and interact in an environment.
Community
population
niche
biosphere
Another name for heterotroph; An organism that obtains its energy from producers.
Scavenger
consumer
parasite
decomposer
An organism that consumes dead organisms and organic waste, example – bacteria, fungus
Decomposer
parasite
herbivore
producer
A diagram that shows how energy moves through the ecosystem (producer, consumers, decomposer)
Food Web
energy pyramid
food chain
ecological succession
A straight line representation that identifies specific feeding relationships between prey and predator.
Food Chain
succession
food web
energy pyramid
A representation of interconnected food chains that show more complex feeding relationships between producers, consumers, and decomposers.
Limiting Factor
biodiversity
food web
ecology
An organism that eats only plants
Prey
producer
autotroph
herbivore
Organisms that cannot make their own food (consumer)
Heterotroph
producer
prey
abiotic
Food and or home for a parasite.
Scavenger
decomposer
host
consumer
An animal that hunts and kills other animals for food which limits the growth of a population.
Predators
competition
herbivore
prey
An organism that produces their own food; example green plants
Consumer
heterotroph
herbivore
producer
How may food chains are there?
3
4
5
6
