Unit 7 Review

Question 1 An Energy Pyramid is used to show ______________.

Energy flow in an ecosystem

Question 2 In an energy Pyramid, which way does the energy travel?

From the bottom to the top or up

Question 3 Give the definition of a decomposer

An organism that only eats dead or decaying matter

Question 4 Look at the following pyramid. If the producers have 7,000 kcal of energy, how much energy will be available for the Sheephead fish?

70 kcal

Question 5 Give the definition of a consumer.

An organism that consumes other organisms

Question 6 If a bird eats insects that feed on corn, which pyramid level would the birds occupy?

B

Question 7 Give the definition of a carnivore.

A carnivore is an organism that only eats consumers or “meat” eaters

Question 8 What is the difference between a food web and a food chain?

A food web is made up of multiple food chains

Question 9 Give the definition of a producer.

A producer is an organism that creates its own food

Question 10 Give a real life example of a mutualistic relationship.

Answers will vary

Question 11 What is the source of all energy on Earth?

The sun

Question 12 What is the organism called that does the harm in a parasitic relationship?

Parasite

Question 13 One model that shows how energy passes from organism to organism is called a ________________________.

Food web, food chain, or food pyramid

Question 14 What is an herbivore?

An organism that only eats producers or plants

Question 15 Which number in the diagram below shows the secondary consumer.

3

Question 16 What is a symbiotic relationship?

When two organisms live together for a short period of time or longer and at least one organisms benefits from the relationship.

Question 17 Give a real life example of a parasitic relationship.

Answers will vary

Question 18 What is a omnivore?

An organism that is both a carnivore and an herbivore An organism that is both a carnivore and an herbivore. It eats both plants and animals.

Question 19 What happens to all of the energy that is not used in an organism?

It is lost

Question 20 What is mutualism?

A symbiotic relationship where both organisms benefit.

Question 21 What is parasitism?

A symbiotic relationship where one organism is benefitted and the other is harmed.

Question 22 Give a real life example of commensalism.

Answers may vary

Question 23 How much energy is actually passed from organism to organism?

10%

Question 23 What is the organism called that is harmed in a parasitic relationship?

The host

Question 24 What level of this energy pyramid holds the primary consumers?

Level 2

Question 25 What two types of organisms eat dead matter?

Decomposers and scavengers

Question 26 When a shark eats a marlin, what kind of relationship is this considered?

Predator & Prey

Question 27 If a bear and a stork live in the same area, and they both eat fish, what kind of relationship is this can example of?

Commensalism