Explanation

Diarrhea and typhoid are caused by bacterial infections:

• Diarrhea can be caused by various bacteria, such as E. coli, Salmonella, Shigella, and Campylobacter.
• Typhoid is caused by the bacterium Salmonella Typhi (S. Typhi).

Explanation

• When carbon dioxide is released in the dough, it gets trapped in the dough, causing it to expand and rise.
• This is what makes bread and other baked goods light and fluffy.

Explanation

• When yeast is added to dough, it ferments the sugars, producing carbon dioxide gas as a byproduct.
• This causes the dough to rise, making it lighter and airier.

Explanation

• Yeast fermentation converts sugars into carbon dioxide gas and ethanol.
• It causing the dough to rise.

Explanation

• Yogurt is made by adding a bacterial culture, typically Lactobacillus bulgaricus and Streptococcus thermophilus, to milk.
• These bacteria ferment the lactose (milk sugar) in the milk.
• It producing lactic acid and causing the milk to curdle and thicken, resulting in yogurt.

Explanation

• Yeast is a type of fungus, specifically a single-celled fungus that belongs to the kingdom Fungi.
• It is a eukaryotic microorganism that is capable of fermenting sugars.
• It is commonly used in baking and brewing.

Explanation

• Escherichia coli (E. coli) is a type of bacterium.
• It is commonly found in the gut of humans and animals.
• It plays a important role in the digestive process. 

Explanation

• E. coli (Escherichia coli) is a type of bacterium.
• Specifically a gram-negative, rod-shaped bacterium that is commonly found in the gut of humans and other animals.

Explanation

Microorganisms are typically classified into three main groups:

1. Bacteria (single-celled prokaryotes)
2. Viruses (tiny infectious agents that replicate inside the cells of an organism)
3. Fungi (organisms that obtain their nutrients by decomposing organic matter or by forming symbiotic relationships with other organisms)

Explanation

• The correct answer is: Mammal → Shark
• Sharks are actually fish, not mammals.
• The correct example for mammals would be: Mammal → Human, Lion, Elephant, etc.