Natural Selection

The video discusses strep throat, antibiotics, and the concept of natural selection using frogs as an example. It explains how variations and mutations occur randomly and can affect an organism's fitness. The video then connects these ideas to antibiotic resistance in bacteria, highlighting the importance of responsible antibiotic use and the development of new antibiotics to combat resistant strains. It concludes with a reminder of the role of vaccines in preventing bacterial infections.

What is the primary target of antibiotics in the human body?

• Eukaryote cells

• Viruses

• Prokaryote cells

• Fungi

In the frog example, what trait gives the darker frogs an advantage?

• Faster swimming

• Louder croaking

• Ability to jump higher

• Camouflage in the habitat

How are mutations and variations described in terms of their occurrence?

• Planned by the organism

• Random events

• Triggered by diet

• Caused by environmental changes

What happens to bacteria that survive antibiotic treatment?

• They change into viruses

• They stop reproducing

• They develop resistance

• They become weaker

Why is it important to only use antibiotics for bacterial infections?

• To prevent viral infections

• To avoid resistance development

• To strengthen the immune system

• To reduce side effects

What is a potential consequence of bacteria sharing resistance genes?

• Faster bacterial growth

• Increased antibiotic effectiveness

• Decreased bacterial fitness

• Spread of resistance

Which vaccine can protect against serious bacterial infections?

• Hepatitis B vaccine

• Flu vaccine

• DTaP vaccine

• MMR vaccine