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A. system
B. ecosystem
A. less salty
B. salty
WRITTEN ASSESSMENT 4 IN SCIENCE 5
02-W7-W8
Direction: Read the questions carefully. Choose the letter of the correct answer and write it on the space provided.
1. Life on earth is a product of different interactions in a region or geographic area where both biotic factor such
soll, etc.) work together. What do we call to this community of living organisms in conjunction with the nonfining
as plants, animals and other organisms and abiotic factor like weather (temperature and humidity) and landscape frocks,
components of their environment, interacting as a system?
C. interaction
0.community
2. Estuaries are areas where salt water and fresh water meets (brackish water. Normally, running water in rivers
goes into the sea. How was the water in estuaries could be defined?
C. tasteless
D. sweet
3. Intertidal zones are area where the presence of water depends on the tides. How can we define the intertidal
zones during high tide?
A. the water diminishes and expose the part of sea bed area during high tide
B. rocks, sand and mud can be seen in intertidal zones during high tide
C. these areas are covered with water during high tide
D. just the same during low tide
4. In both estuary and intertidal zone, organisms have different roles to perform. What do we call to the
organisms that produce food from sunlight and inorganic substances?
A. Consumers
C. Decomposers
B. Scavengers
D. Producers
5. Consumers are organisms that eat other organisms. Which of the following does not belong to consumers?
A. salmon
C. seat
B. phytoplankton
D. small fish
6. Scavengers are organisms that eat food scraps and left-overs. Which of the following is an example of
scavengers?
A. seal
C. crabs
B. salmon
D. heron
7. Decomposers are organisms that breakdown into simpler materials the remains of dead organisms. Which of
the following is an example of decomposer?
A. seal
C. salmon
B. bacteria
D. heron
8. Like other ecosystems, estuaries and intertidal zones needs to be protected. Why do we need to do so?
A. for the beautification of the area
B. so we can attract more tourists in our country
C. because of the presence of organisms that are dependent on their unique conditions
D. so that we will become rich
9. There are a lot of ways to take good care of our estuaries and intertidal zones. Which of the following shows
taking care of the environment?
A. Cleaning up the rivers
C. collecting starfish
B. fishing activities on restricted areas
D. removing sea urchin
10. Food chain is a series of transfer of energy as the algae can be eaten by small fish and small fish may be eaten
by a carnivorous fish. The following are the activities that may negatively affect the process of energy transfer except
one.
A. overfishing
C. habitat destruction
B. pollution
D. restricting fishing activities​

Sagot :

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Answer:

1.A

2.D

3.B

4.C

5.A

6.A

7.C

8.B

9.D

10.D

Explanation:

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