Region IV- MIMAROPADivision of Oriental Mindoro

TRAINING WORKSHOP FOR UNTRAINED GRADES III TO VI SCIENCE TEACHERS ON SCIENCE CONTENT

May 8 – 10, 2013 

PRE - TESTINTERRELATIONSHIP IN THE ECOSYSTEM

SCIENCE 6

Refer to the diagram for items 1 and 2.

 

1. Which of the following organisms are the second order consumers?

a. rat and frogb. bird and snakec. grasshopper and ratd. frog, snake, and eagle

2. Which diagram represents a food in the food web above?a. plant                  frog                   eagle

b. plant                 bird                    eagle                                   rat                         snake

c. eagle              frog                grasshopper               plantd. eagle               rat                 plant

                               snake                 mouse

 

3.Which of the following would happen if our forest areas are converted into housing areas for people’s shelter?

a. 1 and 2b. 2 and 3c. 2, 3 and 4d. 1, 2 and 4

1. More oxygen supply2. Increase of carbon dioxide3. Global warming gets serious.4. Greenhouse effect continues

 4. What is the role of plants in the oxygen-carbon

dioxide cycle?a. They use oxygen during the day.b. They produce carbon dioxide during the

day.c. They use oxygen and produce carbon

dioxide during the day.d. They produce oxygen and use carbon

dioxide during the day.

5. Which of the following diagrams correctly shows the direction of energy flow through a food web?

6. A group of students is building a model of an ecosystem. Which of the following organisms should the students select to act as a decomposer?

7. Which sequence is part of the carbon cycle?

a. transpiration evaporation condensation

precipitation

b. respiration photosynthesis organic decay

coal formation

c. combustion evaporation respiration

condensation

d. decomposition infiltration plant uptake

consumption

8. Study the diagram below.

Which element moves through all parts of this cycle? 

a. Carbonb. Nitrogenc. Oxygend. Phosphorus

9. Refer to the diagram below.

According to the energy pyramid, the most energy is present in organisms living at the same level as the

a. Bobcatb. Birdsc. Grasshoppersd. Grasses

10. In food chain, which are the most efficient users of solar energy

a. Herbivoresb. Carnivoresc. Omnivoresd. Parasites

11. The illustration below shows part of the carbon cycle.

At position Y, carbon is most likely in which of the following forms?

a. Proteinb. Carbon solidc. Carbohydrated. Carbon dioxide

12. Study the diagram below.

What is missing from the given nitrogen cycle?

a. Airb. Rocksc. Virusesd. Bacteria

13. The diagram shows the flow of carbon in a terrestrial ecosystem.

  Which will most likely happen if the decomposers are removed from the carbon cycle?a. The amount of carbon dioxide in the atmosphere will increase.b. The amount of carbon dioxide in the atmosphere will decrease.c. The amount of carbon dioxide used by the producers will increase.d. The amount of carbon dioxide needed by the consumer will increase.