Levels of Organization & Food Chains

Question 1

List the levels of biological organization in order from smallest to largest.

Answer 1

Sub-atomic particles, Atoms, Molecules, Cells, Tissues, Organs, Organ Systems, Organisms, Populations, Communities, Ecosystems, Biomes, Biosphere, Solar System, Galaxies, Universe

Question 2

The tiny parts of an atom including protons, neutrons, & electrons.

Answer 2

Subatomic Particles

Question 3

The building blocks of all matter.

Answer 3

Atoms

Question 4

Made of several atoms bonded together.

Answer 4

Molecules

Question 5

The building blocks of all organisms.

Answer 5

Cells

Question 6

A group of similar cells working together.

Answer 6

Tissues

Question 7

A group of tissues working together in a complete body part.

Answer 7

Organ

Question 8

A group of organs working together for a specific function.

Answer 8

Organ System

Question 9

A complete living thing.

Answer 9

Organism

Question 10

A single species of organisms breeding together in a certain area.

Answer 10

Population

Question 11

Multiple species interacting in an area.

Answer 11

Community

Question 12

All the living and non-living things interacting in an area.

Answer 12

Ecosystem

Question 13

A group of similar ecosystems across the globe.

Answer 13

Biome

Question 14

The thin layer of life surrounding our planet.

Answer 14

Biosphere

Question 15

The Sun and all of the planets and other objects that orbit around it.

Answer 15

Solar System

Question 16

A group of thousands of stars orbiting a common center of mass.

Answer 16

Galaxy

Question 17

All of the matter and energy that exists.

Answer 17

Universe

Question 18

Living parts of an ecosystem.

Answer 18

Biotic Factors

Question 19

Non-living parts of an ecosystem.

Answer 19

Abiotic factors

Question 20

The variety of organisms in an ecosystem.

Answer 20

Biodiversity

Question 21

The process where energy and nutrients are transferred through an ecosystem.

Answer 21

Food Chain or Food Web

Question 22

Compare food chains to food webs.

Answer 22

Both show the movement of energy and nutrients through an ecosystem, but food webs are more detailed, showing all of the different foods eaten by organisms and all of the predators that feed on them.

Question 23

Every food web starts with….

Answer 23

The Sun (except some deep water ecosystems that start with hydrothermal vents - underwater hot springs).

Question 24

Organisms that harvest energy from non-living sources.

Answer 24

Producers

Question 25

The formal name for producers.

Answer 25

Autotrophs

Question 26

Any organism that gets its energy from other organisms.

Answer 26

Consumer

Question 27

The formal name for consumers.

Answer 27

Heterotrophs

Question 28

Organisms that get their energy by eating plants.

Answer 28

Herbivores

Question 29

Organisms that get their energy by eating animals.

Answer 29

Carnivores

Question 30

Organisms that get their energy by eating both plants and animals.

Answer 30

Omnivores

Question 31

Organisms that get their energy by eating tiny particles of once-living organisms.

Answer 31

Detrivores

Question 32

Organisms that get their energy by eating dead organisms that they did not kill.

Answer 32

Scavengers

Question 33

Organisms that get their energy by absorbing molecules from once-living organisms, which converts the molecules into nutrients that can be recycled through the ecosystem.

Answer 33

Decomposers

Question 34

Organisms that get their energy by eating fish.

Answer 34

Piscivores

Question 35

Organisms that get their energy by eating insects.

Answer 35

Insectivores

Question 36

Organisms that get their energy by eating fruit.

Answer 36

Frugivores

Question 37

The proper name for any level of a food chain.

Answer 37

Trophic Level

Question 38

The trophic level that includes herbivores.

Answer 38

Primary Consumers

Question 39

The trophic level that includes carnivores that eat herbivores.

Answer 39

Secondary Consumers

Question 40

The trophic level that includes carnivores that eat carnivores.

Answer 40

Tertiary Consumers

Question 41

The level of a food chain that includes producers.

Answer 41

First Trophic Level.

Question 42

The level of a food chain that includes herbivores.

Answer 42

Second Trophic Level

Question 43

The level of a food chain that includes carnivores that eat herbivores.

Answer 43

Third Trophic Level

Question 44

The level of a food chain that includes carnivores that eat carnivores.

Answer 44

Fourth Trophic Level

Question 45

The organisms in a food chain that recycle nutrients back to the producers.

Answer 45

Decomposers

Question 46

The average amount of energy that is transferred from one trophic level to another.

Answer 46

10%

Question 47

If the producers capture 752 calories, how much energy is transferred to the herbivores?

Answer 47

75.2 Calories

Question 48

A diagram showing the amount of energy at each trophic level.

Answer 48

Energy Pyramid

Question 49

Energy pyramids show that there are always _________ producers than herbivores in an ecosystem.

Answer 49

More

Question 50

Energy pyramids show that the number of carnivores must always be _____________ than the number of herbivores in an ecosystem.

Answer 50

Less

Question 51

Energy pyramids explain why a visitor to an ecosystem will always see ___________, and they will probably see some __________, but they would have to be very lucky to see any ________.

Answer 51

Producers, Herbivores, Carnivores

Question 52

Energy pyramids explain why carnivores often need ___________ areas to survive.

Answer 52

Larger

Question 53

Energy pyramids explain why organisms at this trophic level are often endangered.

Answer 53

Carnivores