Mod 1

Question 1

Consumer

Answer 1

also called heterotrophs, organisms that must consume other organisms for nutrition

Question 2

Decomposer

Answer 2

organisms that break down organic matter

Question 3

Ecosystem

Answer 3

the biotic (living) organisms in an environment that includes the abiotic (nonliving) components

Question 4

Food chain

Answer 4

a series of organisms that consume one another, allowing the energy and nutrients to flow from one to the next

Question 5

Food web

Answer 5

a network of interconnected food chains

Question 6

Organism

Answer 6

an individual animal, plant, or single-celled life form

Question 7

Primary consumer

Answer 7

herbivores that eat producers

Question 8

Producer

Answer 8

also called autotrophs, organisms that produce their own food using inorganic compounds and an energy source like the sun

Question 9

Secondary consumer

Answer 9

carnivores or omnivores that consume primary consumers and/or producers

Question 10

Trophic level

Answer 10

refers to each level in an ecosystem comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy

Question 11

Chemical energy

Answer 11

the energy stored in the bonds of an atom

Question 12

Electrical energy

Answer 12

the energy in the movement of electrons

Question 13

Energy

Answer 13

the ability to perform work on or cause change in things

Question 14

Gravitational Energy

Answer 14

the energy of place or position; the higher an object is above sea level, the more gravitational energy it has

Question 15

Kinetic Energy

Answer 15

the energy of motion

Question 16

Law of conservation of energy

Answer 16

law that states that energy can neither be created nor destroyed; it can be transferred from one object to another or transformed to different forms

Question 17

Mechanical energy

Answer 17

energy that is either stored as potential or due to motion as kinetic

Question 18

Nuclear energy

Answer 18

the energy stored in the nucleus of an atom

Question 19

Potential energy

Answer 19

stored energy that an object has due to its position, condition, or chemical composition

Question 20

Radiant energy

Answer 20

electromagnetic energy (light energy) that travels in waves outward from a source

Question 21

Scientific model

Answer 21

a representation to help us better understand ideas about real-world systems

Question 22

Sound energy

Answer 22

the movement of energy through particles or substances in waves producing a sound

Question 23

Thermal (heat) energy:

Answer 23

the internal energy of substances caused by the movement of atoms or molecules

Question 24

Which of the following describes the ways organisms are interconnected through their feeding patterns?

a. Food chain
b. Trophic level
c. Food web
d. Consumer chart

Answer 24

c. Food web

Question 25

Which best describes the role of a primary consumer in a food web?

a. Carnivore that feeds on producers
b. Herbivore that feeds on producers
c. Herbivore that feeds on primary consumers
d. Carnivore that feeds on primary consumers

Answer 25

b. Herbivore that feeds on producers

Question 26

The table shows the commonly eaten foods of some organisms.

Commonly Eaten Foods List
Group Commonly Eaten Foods
A squids, crabs, lobsters
B branches, barks, twigs, roots
C insects, leaves, nuts, bird eggs
D vegetables, fish, grains, fruits
Which groups contain both primary and secondary consumers?

a. A and B
b. B and C
c. C and D
d. B and D

Answer 26

c. C and D
C insects, leaves, nuts, bird eggs
D vegetables, fish, grains, fruits

Question 27

Which of the following organisms are herbivores?

a. Secondary consumers
b. Decomposers
c. Primary consumers
d. Producers

Answer 27

c. Primary consumers

Question 28

Which of the following is an example of a decomposer?

a. Tree
b. Hawk
c. Rabbit
d. Mushroom

Answer 28

d. Mushroom

Question 29

Which of the following organisms are carnivores?

a. Consumers
b. Decomposers
c. Omnivores
d. Producers

Answer 29

a. Consumers

Question 30

What is another name for a producer?

Answer 30

autotrophs

Question 31

What is another name for a consumer?

Answer 31

heterotrophs

Question 32

Approximately what percent of the energy is transferred from one trophic level to the next?

Answer 32

10 percent

Question 33

How do scientific models help us better understand our world?

Answer 33

Models can be used to visualize, explain, or predict objects or systems that we want to learn more about.