Natural selection and adaptation

a group of organisms that can interbreed with each other

• genus

• species

• family

• dominant

natural differences in a characteristic

• mimicry

• survival

• adaptation

• variation

too many organisms for an environment's resources

• oversupply

• overdemand

• overpopulation

• survival of the fittest

when resources are limited and organisms struggle to obtain those resources

• competition

• mimicry

• biodiversity

• survival of the fittest

all the different organisms in the environment

• species

• overpopulation

• biodiversity

• competition

only the organism that is best adapted will live to produce offspring

• survival of the fittest

• mimicry

• competition

• variation

What represents a natural factor that can cause the extinction of organisms?

• land development

• over-harvesting

• volcanic eruptions

• deforestation

After the industrial revolution began, most of the peppered moths observed were dark in color. Why?

• Light-color moths were more fit for survival because they were less camouflaged against the darkened, soot-covered tree bark.

• Dark-color moths were more fit for survival because they were less camouflaged against the darkened, soot-covered tree bark.

• Dark-color moths were more fit for survival because they were more camouflaged against the darkened, soot-covered tree bark.

• Light-color moths were more fit for survival because they were more camouflaged against the darkened, soot-covered tree bark.

Which behavior would best help a species survive in a forest.

• Being active at night.

• Hibernation.

• Living in a park.

• Changing coat color from light to dark.

Large fishing nets that are over 50 meters are used to catch tons of fish from the oceans. What is an effect of these large fishing nets on non-target organisms?

• Many non-target organisms become endangered species because they get caught in the nets.

• The non-target organisms are unable to adapt when dumped back in the oceans.

• The non-target organisms migrate to freshwater ecosystems.

• Many non-target small organisms that escape the nets decrease in number.