Evidence, Factors, Cladogram

One evidence of evolution that suggest organisms share a common ancestor is when organisms have the same structure but different function.

• vestigial structures
• homologous structures
• analogous structures

• fossil

Study of embryos of various organisms to show a common ancestor because of similarities in development

• natural selection
• embryology
• speciation
• evolution

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence

How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years
• Fossils show how life forms present today are different than those from the past
• Different sedimentary rock layers provide evidence for how the environment has changed over time

The diagram illustrates an embryonic stage of two organisms.

Which of the following can be determined by observing the embryos shown in the diagram

• The organisms share a common ancestry.
• The organisms belong to the same genus.
• The organisms are native to the same geographic areas.
• The organisms will grow into anatomically similar adults.

A change in the inherited characteristics of an organism over time is ________

• evolution.
• development.
• growth.
• ancestry.

The distribution of species across the geographical plains is evidence of common ancestry and know as--

• biogeography

• embryology

• vestigal structure

• molecular evidence

Predict which moth would increase in population

• light 
• dark

Which organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

When a hurricane makes landfall and reduces the population of rabbits to half, only a few white rabbits remain while the majority are brown.

• genetic drift

• gene flow

• non-random mating

• mutations