The Fascinating World of Bacteria

Bacteria are omnipresent, mostly harmless, and play crucial roles in food production and decomposition. Monarrans, a type of single-celled organism, are abundant in nature. Bacteria have existed for billions of years, with cyanobacteria being among the earliest life forms. Fossilized stromatolites provide insights into ancient bacteria. The video concludes with a look at the diverse characteristics of bacteria.

Where can bacteria be found according to the video?

• Only in wastewater treatment plants

• On your skin and inside your body

• Only in yogurt

• Only on rotting fruit

What is a beneficial use of bacteria mentioned in the video?

• Causing strep throat

• Making yogurt

• Causing skin infections

• Creating fossilized mats

What are Monarrans?

• A type of animal

• A type of plant

• Microscopic single-celled organisms

• A type of virus

How long have bacteria similar to cyanobacteria existed on Earth?

• 1 million years

• 3.5 billion years

• 500 million years

• 2 billion years

What evidence do we have of ancient bacteria?

• Fossilized bacterial mats called stromatolites

• Fossilized shells

• Fossilized leaves

• Fossilized bones