Font size
WorksheetsFlow of Energy in Ecosystems
Total questions: 10
Worksheet time: 8mins
Most of the energy that accumulates in our ecosystem comes from the:
(a)
Plants convert ____________ energy into ___________ energy.
light-chemical
termal-motion
chemical-motion
During _________________, plants convert carbon dioxide, water and sunlight into glucose and oxygen.
cellular respiration
chemosynthesis
photosynthesis
summer
Plants are _____________, which means they can make their own food or energy.
consumers
heterotrophs
producers
special
Plants and other autotrophs always occupy the ___________ trophic level in a food chain.
first
second
third
forth
Primary ____________ eat the plants to gain energy.
producers
consumers
decomposers
autotrophs
Carnivores are animals that only eat:
autotrophs
omnivores
carnivores
herbivores
___________________ are organisms that eat both plants and animals.
herbivore
omnivore
carnivore
decomposer
_________________ are organisms that only eat producers.
herbivore
omnivore
carnivore
decomposer
What % is lost in metabolic processes and heat between each trophic level?
10%
20%
90%
