Free Printable Biological Resistance

Worksheets

Biological Resistance

Total questions: 13

Worksheet time: 7mins

Name

Class

Date

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

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 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 change in DNA is a ...

clone

protein

accident

mutation

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

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

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

The pesticide DDT was used extensively in the past to reduce the numbers of malaria-carrying mosquitoes. At first, application of DDT killed almost all the mosquitoes in treated populations. Over years, however, DDT-resistant populations (ones where most mosquitoes were not killed by normal doses of DDT) began to emerge. Which of the following best explains how DDT resistance emerged in the mosquitoes?

The individual mosquitos in the starting populations sensed the environmental threat and mutated genes that made them insensitive to DDT

Populations with DDT resistance are better-adapted for any environment than populations without DDT resistance, so they would have evolved sooner or later (regardless of whether DDT was applied)

When DDT was applied, rare individuals with DDT resistance mutations were more likely to survive and leave offspring, eventually leading to populations composed largely of resistant mosquitoes

The mosquitoes must all have been DDT-resistant to begin with, because there is no genetic variation in natural populations of mosquitoes

10.

What is antibiotic resistance?

The ability for humans to resist antibiotics.

The ability for humans to repel bacteria.

The ability for bacteria to resist antibiotics.

The ability for bacteria to become weak from antibiotics.

11.

Based on the figure, which antibiotic inhibited the growth of the bacteria the most?

12.

How many antibiotics does this bacteria seem to be resistant to?

All of them

None of them

13.

Which statement is true regarding the petri dish shown below?

Antibiotic B is more effective than C.

The control should have no zone of inhibition.

The bacteria is resistant to Antibiotic D.

All of these statements are true.

Reset

Biological Resistance

Total questions: 13

Worksheet time: 7mins

Similar Resources on Wayground