Food web and energy pyramid

What is at the top of the energy pyramid

• Apex predators

• dinos

• Primary consumers

• Secondary consumers

What is a food web

• a food web is when spiders set up a web to catch pray

• a food web is a web of all foods

• food web consists of all the food chains in a single ecosystem.

• A food web is a detailed interconnecting diagram that shows the overall food relationships between organisms in a particular environment

What does a food web represent?

• All connections of energy flow throughout all organisms in a ecosystem.
• The specific ways that mutualism is carried out.
• A single pathway or energy flow between organisms. 
• How carnivores get their food. 

What is a producer?

• an organism that gets energy from eating other organisms
• an organisms that uses sunlight to make its own food
• an organism that gets energy from eating dead organisms, non-living material or waste
• an organism that uses chemical energy to make its own food

Which of the following organisms is a herbivore.

• butterfly
• snake
• fox
• ladybird

An organism that lives by breaking apart dead organic matter into simpler parts is...

• scavenger
• consumer
• decomposer
• carnivore

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.

If the grass in this example had 10,000 Kcal of energy, about how much of that energy would be stored in trophic level 3?

• 100 Kcal

• 100,000 Kcal

• 10 Kcal

• 1,000 Kcal

Which statement best describes the flow of energy as it passes through the organisms in the pyramid?

• energy flows through the organisms from bottom to top and increases at each level

• energy flows through the organisms from bottom to top and decreases at each level

• energy flows through the organisms from top to bottom and increases at each level

• energy flows through the organisms from top to bottom and decreases at each level

Name the trophic level in Level 2.

• Primary

• Tertiary

• Consumer

• Secondary