Trophic Levels, Carbon Cycle, Biomes

Which of the following can be regarded as secondary consumers? Mark all that apply

• Wildflowers

• Rabbit

• Mouse

• Snake

• Hawk

What do the arrows in the food web represent? Mark all that apply

• The trophic level

• Transfer of energy

• Transfer of matter

• The feeding level

• The amount of energy available

How much energy is transferred from one trophic level to the next? For example, how much energy is transferred from plants to herbivores.

• 0%

• 1%

• 50%

• 10%

• 100%

Plants are…Mark all that apply

• Autotrophs

• Heterotrophs

• Decomposers

• Consumers

• Producers

What is the ultimate source of energy for most ecosystems?

• The moon

• The producers

• The autotrophs

• The sun

• The decomposers

Which of the following is a predator prey relationship from the food web?

• The hawk and snake

• The hawk and grass

• The snake and wildflowers

• The mouse and grass

• The rabbits and wildflowers

What is the correct term for different levels on an energy pyramid?

• Energy Level

• Population Level

• Biomass Level

• Trophic Level

Why are there rarely more than three or four trophic levels in any food chain?

• because there is not enough land for the organisms to live

• because there is not enough energy for higher trophic levels

• because humans prevent more than three or four levels

• because there is not enough solar energy

In an ecosystem which trophic level contains the most energy?

• Tertiary Consumera

• Secondary Consumers

• Primary Consumers

• Producers

an organisms that breaks down dead decaying material...

• scavenger

• decomposer

• autotrophs