Copy of Food Chains and Webs; Energy Flow in Ecosystems Videos w/ Questions (5/28/2026)

Last updated about 2 hours ago

25 questions

Note from the author:

Instructions

Copy of Food Chains and Webs; Energy Flow in Ecosystems Videos w/ Questions (5/28/2026)

Last updated about 2 hours ago

25 questions

Note from the author:

You are able to attempt this up to four times - all of your correct answers will be saved.
Each video is approximately 5-7 minutes in length.
You need to watch and listen to each video very carefully and answer each question based on each video.
The video will pause to permit you to answer the questions to the right of each video.
You cannot scroll the video ahead, but you may scroll it backward.
When you are complete, submit your questions; then you can see your score. If you score below a 70% (17/25 or less), you should reattempt this.
Closed Captioning (unfortunately, it's not available for all videos; the video author would have had to added it before I embedded it here):
1. Click "play"

2. After the video starts, the "CC" button in the lower-right will be available - click on it.

3. If closed captioning is available for the video (it's not available for the first one, but it is for the 2nd one), it will allow you to select the language you want to see (obviously, choose English).

Instructions

You are able to attempt this up to four times - all of your correct answers will be saved.
Each video is approximately 5-7 minutes in length.
You need to watch and listen to each video very carefully and answer each question based on each video.
The video will pause to permit you to answer the questions to the right of each video.
You cannot scroll the video ahead, but you may scroll it backward.
When you are complete, submit your questions; then you can see your score. If you score below a 70% (17/25 or less), you should reattempt this.
Closed Captioning (unfortunately, it's not available for all videos; the video author would have had to added it before I embedded it here):
1. Click "play"

2. After the video starts, the "CC" button in the lower-right will be available - click on it.

3. If closed captioning is available for the video (it's not available for the first one, but it is for the 2nd one), it will allow you to select the language you want to see (obviously, choose English).

Question 1

01:11

Question 2

01:32

Question 3

01:56

Question 4

02:11

Question 5

02:19

Question 6

03:04

Question 7

03:39

Question 8

03:49

Question 9

04:01

Question 10

04:19

Question 11

04:20

Question 12

04:46

Question 13

05:15

Question 14

05:28

Question 15

00:28

Question 16

01:19

Question 17

02:38

Question 18

03:05

Question 19

03:45

Question 20

04:28

Question 21

04:57

Question 22

05:41

Question 23

06:34

Question 24

06:35

Question 25

07:05

Copy of Food Chains and Webs; Energy Flow in Ecosystems Videos w/ Questions (5/28/2026)

Copy of Food Chains and Webs; Energy Flow in Ecosystems Videos w/ Questions (5/28/2026)

What process do autotrophs undergo to create their own food?

What direction does the arrow point?

Which trophic level contains the most energy?

How much energy would go to TROPHIC LEVEL 3?

WHERE DOES THE REST OF THE ENERGY (90%) GO?

If the snake population decreases in size, what happens to the other organisms?

Why are food webs better than food chains?

What is biodiversity?

What does biodiversity contribute to?

If the small red birds die out, what other organisms will immediately increase in population size?

If the small red birds die out, what other animals will the snake eat?

True or False or Otherwise - High biodiversity is a good thing for ecosystems to have.

Animals that eat other animals are

What types of organisms are eventually connected to everything living thing in an ecosystem?

As the energy flows up the food chain, some of it is ____ along the way.

Gross primary productivity (GPP) is ____.

True or False or Otherwise - Plants perform both photosynthesis and cellular respiration.

Chemosynthetic organisms use _ & __ to make glucose (their food).

How much energy does a plant actually get from the sun?

Which terrestrial ecosystem has the highest NPP, or the amount that is passed on from plants to the trophic levels?

Seasons cause fluctuations to the overall global net productivity. Which season has the highest productivity?

How much energy is LOST as the energy moves up through the trophic levels?

What is ecological efficiency?

In biology we called Ecological Efficiency

How is the biomass pyramid related to the trophic level pyramid?

Copy of Food Chains and Webs; Energy Flow in Ecosystems Videos w/ Questions (5/28/2026)

Copy of Food Chains and Webs; Energy Flow in Ecosystems Videos w/ Questions (5/28/2026)

What process do autotrophs undergo to create their own food?

What direction does the arrow point?

Which trophic level contains the most energy?

How much energy would go to TROPHIC LEVEL 3?

WHERE DOES THE REST OF THE ENERGY (90%) GO?

If the snake population decreases in size, what happens to the other organisms?

Why are food webs better than food chains?

What is biodiversity?

What does biodiversity contribute to?

If the small red birds die out, what other organisms will immediately increase in population size?

If the small red birds die out, what other animals will the snake eat?

True or False or Otherwise - High biodiversity is a good thing for ecosystems to have.

Animals that eat other animals are

What types of organisms are eventually connected to everything living thing in an ecosystem?

As the energy flows up the food chain, some of it is ____ along the way.

Gross primary productivity (GPP) is ____.

True or False or Otherwise - Plants perform both photosynthesis and cellular respiration.

Chemosynthetic organisms use ___ & ____ to make glucose (their food).

How much energy does a plant actually get from the sun?

Which terrestrial ecosystem has the highest NPP, or the amount that is passed on from plants to the trophic levels?

Seasons cause fluctuations to the overall global net productivity. Which season has the highest productivity?

How much energy is LOST as the energy moves up through the trophic levels?

What is ecological efficiency?

In biology we called Ecological Efficiency

How is the biomass pyramid related to the trophic level pyramid?

Chemosynthetic organisms use _ & __ to make glucose (their food).