WorksheetsModule 4 Post Test
Total questions: 10
Worksheet time: 15mins
In the food web image provided, what eats the squid?
diatoms
squid
leopard seal
orca
Which of the following flows through ecosystems in one direction? (meaning it does not CYCLE)
carbon
energy
nitrogen
water
What is the source of the carbon atoms in a plant's cells?
it was created as the plant grew
the sun
water molecules
the environment
Which describes how the atoms in living things cycle?
through living parts of ecosystems only
in one direction from living to nonliving parts of the ecosystem
in one direction from nonliving to living parts of the ecosystem
repeatedly back and forth through living and nonliving parts of the ecosystem
Why are food webs better representations of how energy moves through an ecosystem than food chains?
Food chains include decomposers, which do not play a role in energy movement through an ecosystem.
Food chains show how matter moves through an ecosystem, not energy.
Food webs include how energy enters an ecosystem, and food chains don't.
Food webs show that animals in an ecosystem can get energy by eating different things.
In what form is energy that is NOT used for life processes released from living things?
light energy
sound energy
thermal energy
chemical energy
What happens to the parts of food molecules as matter moves through an organism?
Explain how cellular respiration is the opposite reaction to photosynthesis.
The graphs show the atmospheric carbon dioxide (CO2 ) concentration at different times of the day and in different seasons of the year. Explain how each graph provides evidence that carbon dioxide is removed from the atmosphere by the process of photosynthesis.
Several forest organisms make up the food web shown. Explain how the model demonstrates the cycling of matter within the ecosystem.
