8 - Micro-organisms & Viruses - Oct 6

Which of the following microbes cannot be seen through a compound (light) microscope?

• Algae

• Bacteria

• Fungi

• Protozoa

• Viruses

How many estimated species of microbes exist on Earth?

• 1 million

• 10 million

• 100 million

• 1 billion

Which type of micro-organism is thought to be among the first life forms to live on Earth?

• Bacteria

• Fungi

• Algae

• Protozoa

How many species of fungi are there?

• 14,400

• 44,000

• 144,000

• 440,000

Which type of micro-organism can be parasitic or symbiotic with other organisms?

• Bacteria

• Fungi

• Algae

• Protozoa

Which type of micro-organism is predominately aquatic?

• Bacteria

• Fungi

• Algae

• Protozoa

Which types of micro-organism is eukaryotic (select all)?

• Bacteria

• Fungi

• Algae

• Protozoa

• Viruses

Which is true of viruses? (select all)

• They can reproduce outside a host

• They cannot reproduce outside of a host

• They cannot take in nutrients

• They can produce waste like cells do

• They are photosynthesizers

Viruses that can cause colds can be dormant for...

• 60 minutes

• 7 hours

• 24 hours

• 7 days

Which statement about viruses is true?

• Viruses are living organisms

• Viruses contain the same cell structures as plant or animal cells

• Viruses do not take in nutrients

• Viruses can affect only animals