8f quiz science biology

____________ are also microscopic but are different from other microbes. Select the right ✅️ options

• 
• 
• 
• 

All bacteria are

• unicellular
• multicellular
• eukaryotic

 

Malaria is caused by

• Virus

• Protozoa

• Bacteria

• Algae

Protozoa cause diseases like dysentery and malaria.

• True

• False

Microorganisms can be found only in air and water.

• True

• False

Which of the following is not used as food preservatives?

• Salt

• Sugar

• Vinegar

• Methane

Whenever any harmful disease-causing microorganism enters the human body, the body produces substances to fight with the entered microbe. It is called

• Antibodies

• Tuberculosis

• Algae

• Fungi

The disease caused by protozoa is

• tuberculosis

• polio

• typhoid

• malaria

What helps in the rise of bread or dosa dough?

• Heat

• Grinding

• Growth of yeast cells

• Low pressure

Name the groups in which microorganisms are broadly classified.

• yeast

• fungi

• protozoa

• algae