Evidence of Evolution

Front

What term best describes the relationship between the forelimbs of humans, dogs, birds, and whales, which have different functions but similar structures?

Back

They are homologous.

Front

How do fossils support evolution?

Back

The fossil record provides evidence that organisms have changed over time.

Front

What best describes the hind leg bones seen in the whale?

Back

The bones are vestigial structures that had a function in an ancestor.

Front

Which of the following would best determine whether two plant species share a recent common ancestor?

Flowering times

,

DNA sequences

,

Stem lengths

,

Habitat distribution

Back

DNA sequences

Front

Which scientist visited the Galapagos Islands, observed traits in finches, and came up with the theory of natural selection?

Back

Charles Darwin

Front

Why are mutations important?

Back

genetic variation needed for a population to evolve.

Front

What is the term for a feature that allows an organism to better survive and reproduce in its environment?

Back

adaptation

Front

According to the diagram, which organism is older? Options: gastropod, trilobite, fern, ammonite

Back

trilobite

Front

The process by which organisms that are better adapted to their environments more successfully survive and reproduce is called ________________ __________________.

Back

natural selection

Front

Vertebrate embryos pass through similar stages of development. This serves as evidence for

Back

common ancestry