Chapter 3 - Ecosystems

Question 1

Which sequence best illustrates the flow of energy?

Answer 1

Sun → grass → grasshopper → frog → snake → owl

Question 2

This organism traps its prey in a web, stings it, paralyzes it, and sometimes saves it to eat later. Is it a…

Answer 2

Consumer

Question 3

A disease kills many rodents; what will likely occur after this?

Answer 3

The numbers of owls will decrease.

Question 4

Frog. Is it a…?

Answer 4

Consumer

Question 5

What is an omnivore?

Answer 5

An animal that eats plants and meat.

Question 6

Earthworm. Is it a…?

Answer 6

Decomposer

Question 7

What are the nonliving parts of an organism’s habitat?

Answer 7

Abiotic factors

Question 8

Anything that constrains a population’s size and slows or stops it from growing.

Answer 8

Limiting factor.

Question 9

What animal type is a lion?

Answer 9

Consumer

Question 10

Cactus. Is it a…?

Answer 10

Producer

Question 11

The movement of carbon from the nonliving environment into living things and back.

Answer 11

Carbon Cycle.

Question 12

Bacteria is an example of a __________.

Answer 12

Decomposer

Question 13

I am made up of many overlapping food chains.

Answer 13

Food web

Question 14

Living factors like plants and animals.

Answer 14

Biotic factors.

Question 15

Which is the role of the turtle

Answer 15

consumer

Question 16

An environment that provides the things a specific organism needs to live, grow, and reproduce.

Answer 16

a habitat

Question 17

The Law of Conservation of ______ states that matter is neither created nor destroyed during any chemical or physical change.

Answer 17

Mass

Question 18

What is a herbivore?

Answer 18

An animal that eats only plants.

Question 19

This organism draws its nutrients from dead organisms as it releases enzymes to cause the organisms to break down and break apart. Is it a…?

Answer 19

decomposer

Question 20

All the members of one species living in a particular area.

Answer 20

A population

Question 21

Only about ________ percent of the energy at one level of a food web is available to the next higher level.

Answer 21

10

Question 22

Abiotic factors.

Answer 22

Non-living factors like water, sun, sand, and air.

Question 23

All the different populations that live together in an area

Answer 23

a community

Question 24

Which of these is a consumer?

Answer 24

deer

Question 25

Fungi. Is it a...?

Answer 25

Decomposer

Question 26

If the plants in a community provide 10,000 cal of energy, approximately how much of that energy would be available to the next organism in the food chain that eats the plants?

Answer 26

1000

Question 27

Water, oxygen, carbon dioxide, light, and minerals are examples of....

Answer 27

abiotic facotrs

Question 28

Rabbit, deer, sheep, cow.

Answer 28

Examples of herbivores.

Question 29

The parts of a habitat that are or once were alive and interact with an organism.

Answer 29

A biotic factor

Question 30

Source of plants' energy

Answer 30

sunlight

Question 31

The transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere.

Answer 31

nitrogen cycle

Question 32

What happens to the population of mice eating ferrets if there's no more mice to eat?

Answer 32

The ferret's population will decrease.

Question 33

Things an organism gets from its environment that it needs to live, grow, and reproduce are...

Answer 33

resources

Question 34

Carbon and _______ are essential for life

Answer 34

oxygen

Question 35

What is an organism?

Answer 35

a living thing

Question 36

an organism's position in the ecosystem.

Answer 36

role

Question 37

True/False: Energy can be created or destroyed, but it cannot change from one form to another

Answer 37

FALSE

Question 38

I break down biotic waste and dead organisms.

Answer 38

decomposer

Question 39

The number of individuals in an area of a specific size

Answer 39

density

Question 40

The number of individuals in an area of a specific size

Answer 40

limiting factor

Question 41

As you work your way up the energy pyramid, what happens to the energy?

Answer 41

Decreases

Question 42

An organism that can make its own food is a...?

Answer 42

producer

Question 43

A diagram that shows the amount of energy that moves from one feeding level to another in a food web.

Answer 43

energy pyramid

Question 44

The community of organisms that lives in a particular area along with the nonliving environment

Answer 44

an ecosystem

Question 45

*An organism that gets energy by feeding on other organisms

Answer 45

consumer

Question 46

A hurricane came ashore and brought saltwater with it. How might this affect the living things in freshwater?

Answer 46

Organisms that cannot live in saltwater will not survive.

Question 47

A visual showing how one thing eats another to get energy.

Answer 47

Food chain

Question 48

Food webs begin with energy supplied by...?

Answer 48

sun

Question 49

________ and oxygen are essential for life

Answer 49

carbon

Question 50

Examples of producers

Answer 50

Grass, oak tree, sunflower, rose bush.

Question 51

What is a carnivore?

Answer 51

an animal that only eats meat

Question 52

What is a scavenger?

Answer 52

an organism that feeds off of decayed organisms

Question 53

a living thing

Answer 53

organism

Question 54

Carbon and _______ are essential for life

Answer 54

oxygen

Question 55

Consists of many overlapping food chains in an ecosystem

Answer 55

food web

Question 56

The process of a gas changing to a liquid

Answer 56

condensation

Question 57

A series of events in which one organism eats another and obtains energy and nutrients.

Answer 57

food chain

Question 58

An environment that provides the things a specific organism needs to live, grow, and reproduce.

Answer 58

habitat

Question 59

The law of Conservation of ______ states that when one form of energy is transformed to another, no energy is lost in the process.**

Answer 59

energy