Energy Flow in the Ecosystem

Which of these is NOT part of an ecosystem?

• Fabric

• Flower

• Bear

• Flour

Organisms that cannot make their own food and must obtain energy from external sources are called

• autotrophs
• heterotrophs
• thylakoids
• plants

Tags

NGSS.MS-LS2-3

An organism that gets energy from breaking down dead organisms, non-living material or waste

• producer
• consumer
• decomposer
• autotroph

Tags

NGSS.MS-LS2-3

If there are 100 kcal of energy available in the producers, how much energy would be available to the herbivores?

• 10 Kcal
• 1 Kcal
• 100 Kcal
• 1000 Kcal

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

If the snake population decreased, which group would increase in number?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

• Decomposers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-1

What is indicated by the diagram?

• Food web
• Food chain
• Food map
• Food menu

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Which of the following is true regarding autotrophs and heterotrophs?

• Autotrophs gain energy by consuming other organisms, Heterotrophs gain energy by absorbing sunlight

• Autotrophs gain energy by sunlight, Heterotrophs gain energy by consuming other organisms

• Autotrophs are typically animals, and heterotrophs are typically plants

• Autotrophs are consumers, and heterotrophs are producers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Where is the least amount of energy available in an energy pyramid?

• The very bottom level

• Secondary consumer level

• The very top level

• Primary consumer level

Tags

NGSS.MS-LS2-3

This is an example of a(n)

• omnivore

• carnivore

• herbivore

• decomposer

What organisms are considered secondary consumers in this food web?

• rabbits, mice and grasshoppers

• grains, grasses and carrots

• foxes, owls, and birds

• birds only

Tags

NGSS.MS-LS2-2