Staar Ecosystems High School

The primary consumers are provided 54,000 joules of energy.  From this amount, 540 joules are provided to the tertiary consumers. How much of the energy was provided to secondary consumers?

• 53,460J
• 5,400J
• 540J
• 54J

Tags

NGSS.MS-LS2-3

Which organisms are both secondary and tertiary consumers in this food web?

• chemosynthetic bacteria and amphipods
• zooplankton and mussels
• ratfish and octopuses
• galatheid crabs and zoarcid fish

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which of these organisms are in a trophic level that receives a larger percentage of energy by the producers than the percentage received at the bats' trophic level?

• mountain lions
• snakes
• hawks
• ground squirrels

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

A student is asked to draw a food web in which the same organism is a primary consumer as well as a secondary consumer. Which is correct?

• the organism must have an arrow pointing from it to a tertiary consumer and decomposer
• the organism must have an arrow point from it to a secondary consumer and a top predator
• the organism must have an arrow pointing to it from a producer and a primary consumer
• the organism must have an arrow pointing from it to a primary consumer and a decomposer

Tags

NGSS.MS-LS2-3

In an energy pyramid, which of the following would be placed at the bottom?

• snails
• blind shrimp
• protozoa
• texas blind salamanders

Tags

NGSS.MS-LS2-3