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21-22 ER 1.7

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Last updated 5 months ago
15 questions
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Review from the last lesson:

Use this picture to answer the questions below:

Question 1
1.

Question 2
2.

Question 3
3.

This is a Cape Cod Salt Marsh Food Web

Question 4
4.
Start with the cordgrass and follow the arrows to the human. What eats what in this ecosystem?

cordgrass→ ______________________ → ______________ → _______________________ →human
Other Answer Choices:
blue crab
purple marsh crab
dusky-smooth hound

Where do food molecules in an ecosystem come from?

Food Chain


Food Web


Question 5
5.

The cards describe the relationships between different organisms in the food web.
-Use the relationships AND the scribble tool to draw arrows showing how matter moves through the ecosystem.
-Your arrow should point in the direction that matter moves.
-Let's do the raccoon together as an example.

Each set of cubes represents the body matter of the organism.

Watch the video, then answer the questions below.

Question 6
6.

The cubes for represent food/body matter (molecules) for each organism (living thing)

What was happening to the molecules in the ecosystem as the cubes (the matter) were getting passed from one organism to the next?

The Food Web Model can help us think about how matter flows when something in the ecosystem changes.

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Question 9
9.

Where do food molecules in an ecosystem come from?
(Food molecules in an ecosystem always start from which organism?)

Sentence starter: Food molecules in an ecosystem come from __________________

Jasmine made a simple food web of some animals that live in the Arctic

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Question 15
15.

What is happening in the picture on the left?
A) Food matter (molecules) being used being broken down to release energy.
B) Food matter (molecules) being used to build the animals body to grow.
What is happening in the picture on the right?
A) Food matter (molecules) being used being broken down to release energy.
B) Food matter (molecules) being used to build the animals body to grow.
What happens to food after an animal eats it? Choose all the correct answers.
A) All of it is used by the body.
B) Some becomes energy.
C) Some becomes new body matter.
D) It is turned into oxygen and used by the body.
Question 7
7.

What do you think would happen to your food web if there were no carp or frogs?
Sentence starter: If there were no carps or frogs, then __________________

Question 8
8.

What do you think would happen to your food web if there were no plants or algae?
Sentence starter: If there were no plants or algae, then __________________

Question 10
10.

Question 11
11.

Question 12
12.

Question 13
13.
Start with the grass. Fill in the blanks.
grass→ ____________ → _______________
Other Answer Choices:
caribou
polar bear
Question 14
14.
Start with the grass. Fill in the blanks.
grass→ ________________ → _________
Other Answer Choices:
wolf
arctic hare
What would happen if there were no Arctic Hares? (choose all that apply)
A) The number of Polar Bears would decrease.
B) The amount of grass would increase.
C) The number of Arctic Wolves would increase.
Based on Jasmine’s food web, which organism is the main source of energy for the Arctic Wolf?
A) Grass
B) Caribou
C) Polar Bear
D) Arctic Hare
The Arctic Hare is food for (choose all that apply)
A) Arctic Wolf
B) Caribou
C) Grass
D) Polar Bear
In this food web, where does the flow of food molecules begin?
A) Grass
B) Caribou
C) Polar Bear
D) Arctic Hare