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

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Poslední aktualizace about 1 month ago
25 Dotazy
Poznámka od autora:

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).

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
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Question 2
01:32
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Question 3
01:56
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Question 4
02:11
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Question 5
02:19
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Question 6
03:04
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Question 7
03:39
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Question 8
03:49
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Question 9
04:01
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Question 10
04:19
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Question 11
04:20
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Question 12
04:46
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Question 13
05:15
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Question 14
05:28
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Question 15
00:28
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Question 16
01:19
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Question 17
02:38
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Question 18
03:05
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Question 19
03:45
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Question 20
04:28
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Question 21
04:57
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Question 22
05:41
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Question 23
06:34
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Question 24
06:35
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Question 25
07:05
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Otázka 1
1.

What process do autotrophs undergo to create their own food?

Otázka 2
2.

What direction does the arrow point?

Otázka 3
3.

Which trophic level contains the most energy?

Otázka 4
4.

How much energy would go to TROPHIC LEVEL 3?

Otázka 5
5.

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

Otázka 6
6.

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

Otázka 7
7.

Why are food webs better than food chains?

Otázka 8
8.

What is biodiversity?

Otázka 9
9.

What does biodiversity contribute to?

Otázka 10
10.

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

Otázka 11
11.

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

Otázka 12
12.

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

Otázka 13
13.

Animals that eat other animals are

Otázka 14
14.

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

Otázka 15
15.

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

Otázka 16
16.

Gross primary productivity (GPP) is ____.

Otázka 17
17.

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

Otázka 18
18.

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

Otázka 19
19.

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

Otázka 20
20.

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

Otázka 21
21.

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

Otázka 22
22.

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

Otázka 23
23.

What is ecological efficiency?

Otázka 24
24.

In biology we called Ecological Efficiency

Otázka 25
25.

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