Weekly HW 23/Ecology Concepts Pt. 2

Reorder the ecological levels of organization from smallest (1) to largest (5).

• Organism

• Population

• Community

• Ecosystem

• Biome

About how much percent of energy is passed on from one organism to the next in an energy pyramid?

• 100 percent of all energy gets passed
• 50 percent of all energy gets passed

• 10 percent of all energy gets passed
• 25 percent of all energy gets passed

Match the trophic level with the producer/consumers.

• Producer

• Trophic Level 3

• Primary Consumer

• Trophic Level 4

• Secondary Consumer

• Trophic Level 2

• Tertiary Consumer

• Trophic Level 1

• Apex Predator

• Trophic Level 5

In an energy pyramid, energy_______ as you move up the pyramid.

• Increases
• Decreases
• Stays the same
• Fluctuates between increasing and decreasing

An energy pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows an energy pyramid?

• A
• B
• C
• D

Match the following.

• positive population growth

• population increases because births are greater than deaths

• negative population growth

• population stays the same because births equal deaths

• zero population growth

• population decreases because deaths are greater than births

Look at the diagram. Match the following.

• Herbivore

• Grasshopper

• Decomposer

• Cattails

• Producer

• Mushrooms

• Carnivore

• Blue Bird, Snake, Hawk

Look at the diagram. Match the following.

• Primary Consumer

• Grasshopper

• Secondary Consumer

• Snake

• Tertiary Consumer

• Hawk

• Quaternary Consumer

• Blue Bird

Look at the diagram. If the Cattails have 20,000 kilocalories of energy, match how much energy will be passed to each consumer.

• 2

• Hawk

• 20

• Blue Bird

• 2,000

• Snake

• 200

• Grasshopper

Look at the diagram. If the Lavender have 55,000 kilocalories of energy, match how much energy will be passed to each consumer.

• 55

• Eagle

• 0.55

• Butterfly

• 550

• Dragonfly

• 5, 500

• Frog

• 5.5

• Python