Alga

Algae are simple organisms without complex structures like roots, stems, or leaves. They can be single-celled or multicellular and play a crucial role in producing oxygen and forming the base of aquatic food chains. Additionally, algae are important for industrial applications, including the production of petroleum products.

What complex structures do algae lack?

• Bark and branches

• Flowers and fruits

• Roots, stems, or leaves

• Thorns and tendrils

Which of the following best describes algae?

• A mix of single-celled and multicellular organisms

• Only multicellular organisms

• Only single-celled organisms

• Non-living organisms

What is one of the primary roles of algae in the environment?

• Producing much of the earth's oxygen

• Absorbing carbon dioxide

• Providing shelter for land animals

• Generating heat

Algae form the base of the food chain for which type of life?

• Terrestrial life

• Subterranean life

• Aquatic life

• Aerial life

Which industrial products are derived from algae?

• Plastics

• Metals

• Petroleum products

• Textiles