8LS1 Ch6.2 Quiz - Vocab & Content

Define: adaptation

• the breeding of

  organisms for desired characteristics

• adaptation that enables

  species to blend in with their

  environments

• characteristic of a species

  that enables the species to survive

  in its environment

• slight difference in the

  appearance of individual members

  of a species

Define: variation

• the breeding of

  organisms for desired characteristics

• adaptation that enables

  species to blend in with their

  environments

• characteristic of a species

  that enables the species to survive

  in its environment

• slight difference in the

  appearance of individual members

  of a species

Define: camouflage

• the breeding of

  organisms for desired characteristics

• adaptation that enables

  species to blend in with their

  environments

• characteristic of a species

  that enables the species to survive

  in its environment

• slight difference in the

  appearance of individual members

  of a species

Define: Natural selection

• the process by which

  populations of organisms with

  variations that help them survive

  in their environments live longer,

  compete better, and reproduce

  more than those that do not have

  the variations

• adaptation that enables

  species to blend in with their

  environments

• characteristic of a species

  that enables the species to survive

  in its environment

• slight difference in the

  appearance of individual members

  of a species

Define: A person who studies plants and animals by observing them like Charles Darwin is ________

• naturalist

• chemist

• astronomer

• geologist

Darwin was not the first to develop a theory of ________, but his theory is the one best supported by evidence today.

• evolution

• gravity

• relativity

• photosynthesis

The type of tortoise, mockingbird, and finch that live on each of the Galápagos Islands was slightly different; Darwin later figured out that some varieties were different enough to be classified as different ________.

• species

• genera

• families

• orders

Darwin knew that in any species, members of the same species each have slight differences, called ________.

• variations

• mutations

• adaptations

• modifications

Darwin’s theory of evolution by _______ predicts that species will develop adaptations and, therefore, eventually closely match Earth’s changing environments.

• natural selection.

• artificial selection.

• genetic drift.

• mutation.

Which of the following describes some adaptations that common animals have?

• Animals have adaptations like camouflage, hibernation, and migration.

• Animals can adapt by changing their diet to suit new environments.

• Animals develop new physical features instantly when the environment changes.

• Animals do not need to adapt to survive in changing environments.