22.
Which among the following is a mammal?
Dolphin
B. Snake
A.
C. Bird
D. Fish
23.
Eagle is the National Bird of the Philippines which is a member of the Class Aves. Which among
the following is NOT attributed to the Class Aves?
Absence of teeth
C. Sharp eyesight
B. Presence of hair of fur
D. Strong yet lightweight skeleton
24.
Biodiversity is the variability among living organisms from all sources including land and water
ecosystem. What is the effect of high biodiversity in an area?
A It will lead the organisms to compete for the limited food supply.
B. It will increase the productivity in the ecosystem
C. It could increase contact with diseases
D. li can reduce food security
For items 25 - 26, use the food chain below to answer the questions.
Plant
Insect
Frog
Snake
Bird
Bacterium
25.
In the given food chain above, what role is being served by the plant?
A Decomposer
C. Producer
B. Primary consumer
D. Secondary Consumer
26.
Which among the organisms in the given food chain receives the highest amount of energy from
the producer?
Bacterium
C. Plant
Bird
D. Insect
27. What would be the possible effect if the producers will decrease in number?
There will be enough food for all the consumers.
There will be more consumers that can survive.
IN There will be more competition among consumers.
IV. There will be less consumers which can survive.
1 &
C. 1 &
5. Il & B
D. III & IV​