Bio101
Your least favorite class
Green Thumb
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100

In eukaryotic cells, the citric acid cycle, also known as the Krebs cycle, occurs in which a double-membrane bound organelle was discovered in 1857. 

What is the mitochondria? 

100

The most common element in the human body. 

What is oxygen? 

100

The world's deepest ocean.

What is the Pacific ocean?

100

The largest state in the United States.

What is Alaska? 

100

The most popular ice cream flavor in the US. 

What is vanilla ice cream? 

200

The hardest substance in the human body. 

What is a tooth enamel? 

200

NH3 is a colorless gas.

What is ammonia? 

200

This gas forms 80% of the Earth's atmosphere. 

What is nitrogen?

200

The largest desert in the United States. 

What is the Chihuahuan Desert?

200

The most popular pizza topping in the US. 

What is pepperoni? 

300

The protein that helps clot blood. 

What is fibrin?
300

This is the color when potassium burns. 

What is purple? 

300

The layer in the upper part of the atmosphere prevents the sun’s harmful UV rays to enter into earth’s surface and acts as a protective cover for the earth.

What is the ozone layer?

300

This state has the smallest population of people in the US. 

What is Wyoming? 

300

This is where french fries were invented.

What is Belgium? 

400

The scientific name for the common cold.

What is rhinovirus?

400

You use this device to measure an electric current. 

What is an ammeter. 

400

The three primary greenhouse gases.

What are carbon dioxide, methane, and chlorofluorocarbon? 

400

The lowest point in the United States.

What is Death Valley? 

400

This type of food holds the world record for being the most stolen in the world.

What is cheese.  

500

This is where blood is produced. 

What is the bone? (bone marrow)

500

The 6 naturally occurring noble gases. 

What are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn)

500

This element forms by the action of bacteria during the disintegration of dead organisms.

What is sulfur?

500

How many US states land border Canada? 

What are 11 states? 

500

The Chinese gooseberry is most commonly known as this in the US. 

What is a kiwi?