WorksheetsEcology (LS) ch 3-5
Total questions: 15
Worksheet time: 8mins
The combined portion of Earth in which all living things exist is called the
biosphere
ecosystem
community
biome
What organisms make their own food with sunlight or chemical energy?
producers
consumers
decomposers
scavengers
Which organism is the autotroph in this food web?
Aphids
Oak Tree
Caterpillar
Hawk
Which organism gets its energy from the Aphids?
Hawk
Oak Tree
Thrush
Ladybird
Which description below shows how energy flows through a food chain?
Producers------> carnivores-------> herbivore
Sun-----> producers-----> herbivores-----> carnivores
Sun-----> herbivores ----->carnivores ----->producers
Carnivores ----->producers ----->herbivores
The average year to year conditions of temperature and precipitation within a particular region are its
Biotic factors
Weather
greenhouse effect
Climate
________________is when one organism captures and feeds on other organisms
Competition
Predation
mutualism
Commensalism
What is a biotic factor in this ecosystem?
rocks
temperature
dragonfly
water
What is an abiotic factor in this ecosystem?
rocks
temperature
dragonfly
water
The maximum number of organisms of a particular species that can be supported by an environment is called
Population density
exponential growth
logistical growth
Carrying capacity
Since the Industrial revolution, human populations have
Leveled off
Reached carrying capacity
grown more rapidly
Decreased
Which kind of growth does the human population follow? It is described as a J-shaped curve.
Exponential Growth
Logistic Growth
Outstanding Growth
Minimal Growth
If the caterpillar gets poisoned, who else can get poisoned?
Hawk
blackbird
Thrush
All of the Above
An environment's biotic and abiotic factors interact to make a(n)
habitat
ecosystem
niche
resource
An animal that eats only plants or producers is a(n)
decomposer
herbivore
carnivore
omnivore
