Part 2: Cycles of Matter and Energy Transfer in Ecosystems

When an organism suffers (population decreases) in an ecosystem, which organism suffers also?

• The organism that the original organism eats.

• The organism that used the suffering organism as its food source

• No other organisms suffer

• all of these

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

When an organism suffers (population decreases) in an ecosystem, which organism benefits (population increases) from this event?

• The organism that the original organism eats.

• The organism that used the suffering organism as its food source

• No other organisms suffer

• all of these

Tags

NGSS.MS-LS2-4

What do primary consumers eat?

• producers

• plants

• herbivores

• carnivores

What do secondary consumers eat?

• herbivores

• primary consumers

• carnivores

• all of these

As you go up the trophic levels, what happens to the amount of energy available?

• It decreases by 90%

• It is released into the atmosphere in the form of heat.

• It increases by 90%

• It disappears

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the difference between phytoplankton and zooplankton?

• Phytoplankton are producers and zooplankton are consumers

• Phytoplankton can do photosynthesis while zooplankton eat phytoplankton

• Phytoplankton are autotrophs and zooplankton are heterotrophs

• Phytoplankton are consumed by the primary consumer zooplankton.

Tertiary and quaternary consumers are at the top of the food chain. They are _____________.

• producers

• carnivores/omnivores

• herbivores

• all of these

Tags

NGSS.MS-LS2-4

Energy from the sun enters our biosphere through our _____________________.

• consumers

• producers

• carnivores

• omnivores

• primary consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

True or False: All primary consumers are herbivores and eat plants, algae, or some bacteria (autotrophs)

• True

• False

The prefix "zoo" means _______________.

• animal

• consumer

• heterotroph

• all of these