Natural Selection and Antibiotic Resistance in Bacteria

Miranda Wilson presents a lesson on modeling natural selection through an activity suitable for middle and high school students. The activity simulates antibiotic resistance in bacteria, demonstrating natural selection. Students use colored tokens and dice to represent bacteria and antibiotics, learning the importance of completing antibiotic courses. The lesson includes data collection, graphing, and real-world examples like tree frogs in Chernobyl. Additional resources and related articles are available for further exploration.

What is the primary focus of the activity discussed in the video?

• Chemical reactions

• Weather patterns

• Photosynthesis

• Natural selection

Why is it crucial to complete a prescribed course of antibiotics?

• To reduce costs

• To eliminate the most resistant bacteria

• To increase antibiotic production

• To prevent nausea

What materials are needed for the classroom activity?

• Microscopes and slides

• Computers and software

• Textbooks and notebooks

• Colored tokens and dice

What should students do if they roll a two or a four during the activity?

• Add five tokens

• Nothing happens

• Remove all tokens

• Double the number of tokens

How do students simulate bacteria reproduction in the activity?

• By adding tokens of each color they have left

• By removing half of the tokens

• By swapping tokens with a partner

• By drawing bacteria on paper

What is the purpose of graphing data in the classroom activity?

• To make the class longer

• To use up excess paper

• To improve drawing skills

• To visualize trends and results

What real-world example is used to explain natural selection?

• Fish in the Amazon River

• Cacti in the desert

• Polar bears in the Arctic

• Tree frogs near Chernobyl

What does melanin in the skin of tree frogs near Chernobyl supposedly protect them from?

• Radiation

• Cold temperatures

• Predators

• Infections

Which articles are suggested to complement the classroom activity?

• History of antibiotics

• Evolution of plants

• Adaptation of dragonflies to warmer climates

• Physics of motion

What additional resource is provided for students who need reading assistance?

• Extra textbooks

• Audio versions of articles

• Summary sheets

• Private tutoring sessions