Review Questions for Quarter 2

Why do we need to protect the ecosystems?

I. They provide raw materials and resources for medicine.

II. They maintain soil and provide us food.

III. They supply us with clean air.

• I and II

• I and III

• II and III

• I, II, and III

Clams, snails and squids belong to mollusks. What do they have in common?

• They are soft-bodied animals.

• They are pore-bearing animals.

• They are spiny-skinned animals.

• They are animals with stinging cells.

What should young people like you do to help minimize activities that endanger animals, like illegal hunting and selling wild animals in pet shops?

• Buy those animals for pets.

• Help hunters find pet shops to sell their catch.

• Report illegal hunters to the proper authorities.

• Buy accessories and bags made from animal skins and bodies.

Some social media influencers made fun of a stray dog for their content. What should you do to save the animal in the video?

• Report the persons involved to the authorities.

• Share the video to your friends.

• Unsubscribe to their channel.

• Hit the “Like” button.

In a tropical rainforest, trees and shrubs grow together in one area. What do these two organisms compete for?

• water and chemicals

• chemicals and oxygen

• sunlight and nutrients

• oxygen and carbon dioxide

Which statement tells about the interaction of living and nonliving things in coral reefs?

• . Seagrass is eaten by small invertebrates. 

• Fish and crabs hide from predators in seagrass beds. 

• The decomposers break down wastes from dead organisms.       

• Plants and algae get energy from the sun to make their own food.

Which sentence states the importance of protecting the mangroves?

• Mangroves form a barrier that protects shorelines

• Mangroves increase the soil erosion.

• Mangroves lessens quality of water

• Mangroves absorbs the flood water.  

How does temperature affect the living components of the tropical rainforest?

• It reduces the rainfall in the area.

• Rising temperatures increase the fire risk.

• High temperatures increases vegetation growth.

• Changes in temperature affect the moisture of the soil.

Why are tropical rainforests called the “lungs of the planet?”

I. They store and filter excess carbon and other pollutants.

II. They release oxygen through photosynthesis. 

III. They emit greenhouse gases.

• I and II

• I and III       

• II and III

• I, II, and III

Which statement tells how mangroves are destroyed?

• Mangroves prevent soil erosion.

• Mangroves serve as dumping sites.

• Mangroves reduce the impact of storms. 

• Mangroves provide breeding habitat for fish, shellfish, migratory birds and sea turtles.