Unit 1 Review TEST

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

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

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.

Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest.

• Extinction
• Speciation
• Natural Selection
• Artificial Selection

Natural selection explains HOW organisms change over time. What is the process in which populations are changed over time?

• Digestion

• Elimination

• Evolution

• Adaptation

Another term for Natural Selection is:

• Breeding

• Commensulism

• Communism

• Survival of the fittest

Mutations are a change in what?

• DNA
• tRNA
• genotype
• phenotype

What word describes a trait that helps an organism survive in its environment?

• natural selection

• mutation

• camouflage

• adaptation

What word describes a trait that helps an organism survive in its environment?

• natural selection

• mutation

• camouflage

• adaptation

Why is the mouse population changing over time? (You can enlarge the picture by placing your cursor on it.)

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more dark mice than light mice because the dark mice taste better

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because they can see the dark mice more easily