1. Organisms that manufacture their own food are called

decomposers producers consumers parasites

2. Photosynthesis is the process by which green plants

break down food to release energy take in ready-made food from the soil digest food in their leaves make food from carbon dioxide and water using sunlight

3. Which substance in green leaves absorbs solar energy for photosynthesis?

Protein Chlorophyll Starch Cellulose

4. The products of photosynthesis are

protein and water starch and carbon dioxide carbon dioxide and water glucose and oxygen

5. Plants differ from animals because plants have

cell membranes cytoplasm chlorophyll a nucleus

6. Water lilies in a pond help to increase the amount of ____ in the water.

oxygen nitrogen carbon dioxide hydrogen

7. Which organism is found at the beginning of a food chain?

Grasshopper Hawk Grass Lizard

8. In the food chain grass → grasshopper → lizard → hawk, which organism has the least energy?

Grasshopper Hawk Lizard Grass

9. The energy stored in the food we eat is

heat energy sound energy kinetic energy chemical energy

10. The surroundings of an organism, made up of all living and non-living things, is its

environment population community habitat

11. The place where an organism lives is called its

ecosystem niche habitat population

12. We should protect the habitats of living things so that organisms will not become

producers decomposers abundant endangered

13. Bushfires (I) destroy habitats (II) kill living organisms (III) reduce plant cover. Which are true?

I, II and III II and III only I and II only I only

14. In a food chain, the arrow (→) means

is afraid of comes from lives with energy is transferred to

15. Which food chain is correctly arranged?

hawk → lizard → grasshopper → grass grass → grasshopper → lizard → hawk grasshopper → grass → lizard → hawk lizard → grass → hawk → grasshopper

16. Which of these is a primary consumer on a Ghanaian farm?

Hawk Lion Goat Snake

17. Bacteria and fungi that break down dead plants and animals are

decomposers primary consumers tertiary consumers producers

18. Insecticide is sprayed on a maize farm and kills all the grasshoppers. What will most likely happen to the lizards?

They will become producers Nothing will happen Their number will decrease Their number will increase

19. In a field, the grasshoppers and caterpillars are all killed. What will most likely happen to the green plants at first?

They will increase in number because fewer insects eat them. They will die immediately. They will become consumers. They will stop making food.

20. A food web shows

only one food chain how many food chains in an ecosystem are linked together how decomposers die the number of plants in a farm