antibiotic & pesticide resistance AND Natural Selection

A pesticide is...

• A chemical that kills a bug / insect

• A substance that kills bacteria

• A nutrient for certain crops

• A substance created by biotechnology to induce mutations in insects

Tags

NGSS.HS-LS2-7

NGSS.HS-LS4-5

An antibiotic is...

• A chemical that kills a bug / insect

• A substance that kills bacteria

• A chemical that destroys any toxins in the stomach

• A substance created by biotechnology to induce mutations in bacteria

Tags

NGSS.HS-LS4-5

A  population of cockroaches was sprayed with an insecticide.  Some cockroaches survived and produced a population of cockroaches that was resistant to this spray.  What can BEST be inferred from this example?

• species will adapt no matter what the environment

• environment has no effect on the survival of an organism

• Individuals with favorable variations survive and reproduce

• Insecticides cause mutations that are passed on to the next generation

A pesticide is...

• A chemical that kills a bug / insect

• A substance that kills bacteria

• A nutrient for certain crops

• A substance created by biotechnology to induce mutations in insects

Tags

NGSS.MS-LS2-4

An antibiotic is...

• A chemical that kills a bug / insect

• A substance that kills bacteria

• A chemical that destroys any toxins in the stomach

• A substance created by biotechnology to induce mutations in bacteria

A change in DNA is a ...

• clone
• protein
• accident
• mutation

Tags

NGSS.HS-LS3-2

A  population of cockroaches was sprayed with an insecticide.  Some cockroaches survived and produced a population of cockroaches that was resistant to this spray.  What can BEST be inferred from this example?

• species will adapt no matter what the environment
• environment has no effect on the survival of an organism
• Individuals with favorable variations survive and reproduce
• Insecticides cause mutations that are passed on to the next generation

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-3

NGSS.HS-LS4-4

Why is it important to finish ALL of an antibiotic, even if you feel better?

• If all of the infectious bacteria are not killed, the bacteria may continue to multiply. Some of these bacteria may have a mutation that makes them resistant to the antibiotic. This could cause resistant bacteria to spread.

• If all of the antibiotic is not used, the surviving bacteria may learn how to fight off the antibiotic, causing the sickness to get even worse.

• If all of the antibiotic is not used, the bacteria may begin ingesting your skin cells, causing a new sickness to arise.

• If all of the antibiotic is not used, the surviving bacteria may cooperate with other infectious bacteria, resulting in two separate infections at the same time.

The table below shows what happens to an insect population before and after a pesticide is added.

Which of the following best explains why more of the pesticide-resistant insects were present in the second generation?

• Because of the pesticides in plants, insects in the second generation developed a tolerance for pesticides

• Because of heredity, insects with genes for pesticide resistance passed it on to the following generation

• Because of the environment, parent insects taught their offspring to be pesticide resistant in order to survive

• Because of heredity, insects learned to avoid pesticides on plants

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

NGSS.HS-LS4-4

NGSS.HS-LS4-5

People are making antibiotic resistance worse by:

• taking antibiotics only when they need them
• putting antibiotics into our food and environment
• not sharing antibiotics with others

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-2