II GRADED PRACTICE I TRIMESTER

How can we have a Healthy ecosystem?

• There are more predators than prey.

• Good conditions such as good weather and more animals to be eaten.

• There is a balance between the living and non living things.

It's the gradual change of an ecosystem.

• Succession

• Pioneers

• Biodiversity

What are the two types of succession?

• Pioneer Stage and Intermediate Stage.

• Primary and Secondary Succession.

• Primary and Secondary Pioneer.

What's pioneers?

• The first species that appear in a new environment.

• The last stage that has more plants and animals in a new environment.

What's an example of a secondary succession?

• the environment after a fire.

• the environment after a volcano eruption.

It's the way to preserve the environment

• Conservation

• Endangered Habitats

How can we protect the ecosystem?

• Cutting down trees and deforestation.

• Reduce, Reuse and Recycle materials.

• Plastic production and production of Black Carbon.

What's endangered species?

• Organisms that are overpopulated.

• Organisms with the risk of dying out.

What are two human activities that destroy the environment?

• Plant a tree and shop wisely.

• Conservate water and choose sustainable.

• Overfishing and Pollution.

Why are forests considered natural filters?

• Because they take oxigen and release carbon dioxide.

• Because they are the habits of many species that help to conservate the balance.

• Because they clean the air by taking carbon dioxide and release oxygen.