8th SCIENCE 2

The name of the French chemist and microbiologist considered in class is:

• Antonie van Leeuwenhoek

• Louis Pasteur

• None is correct

The microscope was invented in this period of time:

• 1616s

• 1006s

• 1600s

Microorganisms that cause diseases are called:

Name 3 places where we can find pathogens

Diseases that can be passed from one organism to the next are called:

• VIRUSES

• BACTERIA

• INFECTIOUS

One of the best ways to prevent the spread of harmful pathogens is:

These microorganisms play a very important role in ecosystems as they break down dead plant and animal matter.

Write the name of the nitrogen-fixing bacteria that cannot live independently and need a plant host.

Yeast is an example of:

• FUNGI

• BACTERIA

• PROTIST

They are a large kingdom of microorganisms. They can be harmful or useful.

• VIRUS

• BACTERIA

• PROTIST