Biology finals second trimester

Beak shape in finches is affected by the

• A: number of predators in the area.

• B: size of the finch.

• C: color of the finch.

• D: type of food available to eat.

The finches that Darwin studied differed in the shape of their beaks. According to Darwin, the finches probably

• A: came with those traits from South America.

• B: would become more similar over time.

• C: were descended from similar birds in Africa.

• D: had become adapted to eating different diets.

Layers of rock give evidence of

• A: Lamarckian inheritance.

• B: population growth.

• C: the great age of Earth.

• D: artifact selection

Lamarck and Darwin had similar views about

• A: adaption to the environment.

• B: plants and animals producing more offspring than can survive.

• C: cahnge in the frequency of certain alleles on a population.

• D: the age of Earth

The major idea that Darwin presented in his book /The Origin of Species/ was that

• A: species changed over time and never competed with each other.

• B: animals changed, but plants remained the same.

• C: elephants and bacteria changed constantly.

• D: species changed over time by natural selection.

The Galapagos finches are adapted to their environment because they have

• A: not changed.

• B: migrated.

• C: evolved

• D: hibernated.

Darwin's theory lacked an explanation for

• A: how evolution occurs.

• B: inheritance of traits.

• C: adaptations.

• D: compitition.

The formation of new species is called

• A: extinction.

• B: embryology

• C: speciation.

• D: microevolution.

The term microevolution refers to

• A: speciation.

• B: macroevolution.

• C: small-scale chenges in a population's genes.

• D: large-scale changes in species traits.

The hypothesis that evolution occurs at slow, gradual pace is known as

• A: gradualism.

• B: slow motion.

• C: natural selection.

• D: adaptation.