Chapter 7- Quiz 2

Question 1

How many food chains are represented in an energy pyramid?

Answer 1

One

Question 2

The transfer of energy and nutrients through a community is called a —

Answer 2

Food chain

Question 3

What is a producer?

Answer 3

Plant (something that produces its own food)

Question 4

When two or more organisms are trying to use the same resources —-occurs to help balance the ecosystem

Answer 4

Competition

Question 5

Which part of the energy pyramid receives the most energy?

Answer 5

Producer
(Bottom of pyramid)

Question 6

What does an energy pyramid show?

Answer 6

The amount of energy moving through an ecosystem.

Question 7

What is a consumer?

Answer 7

Organism that eats food for energy

Question 8

A food chain always begins with —

Answer 8

Producer

Question 9

The second link in a food chain is usually a —

Answer 9

Herbivore

Question 10

What is a decomposer?

Answer 10

Organism that breaks down dead things and waste

Question 11

An animal that hunts and eats other animals is called a —

Answer 11

Predator

Question 12

Each organism uses about
—% Of its energy, and transfers about —%

Answer 12

90%

10%

Question 13

What do scavengers do?

Answer 13

Eat things that already died (clean ecosystem)

Question 14

Several food chains linked together form a —?

Answer 14

Food web

Question 15

The original source of energy for all living things is —?

Answer 15

Sun

Question 16

How does changing one part of a food web affect other organisms?

Answer 16

They may have to move or eat something else

Question 17

The animals a predator hunts are called -

Answer 17

Prey

Question 18

How are food chains different from food webs?

Answer 18

Food webs are multiple food chains put together

Question 19

What is an ecosystem?

Answer 19

All of the living organisms and their environment in a certain section of the Earth