S2U4- Evolution Review Questions

What do we call a change in a species over time?

• Adaptation

• Evolution

• Extinction

• Environmental influences

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

Comparing human hemoglobin of chimpanzees, horses, kangaroos, and chickens, reveal that humans have the fewest amino acid differences with 

• Kangaroos
• Horses
• chickens
• chimpanzees

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

The following evidence supports the theory of evolution: Check all that apply.

• similar body structures in organisms

• Similar DNA in organisms

• population trends

• ancient fossils revealing adaptations of organisms

• natural selection

The theory of Endosymbiosis explains...

• The origin of eukaryotes
• How species develop
• How bacteria evolved
• Why cells rely on one another

Which of the following contributed most to the intense heat of the earth's early atmosphere?

• Clouds of carbon dioxide, hydrogen, and other gases

• Frequent collisions with asteroids and metorites

• Lightening strikes and volcanic eruptions

• Closer proximity to the sun

Stanley Miller and Harold Urey were the first to demonstrate that

• Earliest genetic material was RNA, rather than DNA

• Meteorites contain amino acids, many of which exist on Earth.

• Organic molecules can be formed from inorganic chemicals

• earth formed from nebula around 4.6 billion years ago

What suggested life may have been carried to early Earth from outer space by meteorites and other celestial objects

• Electric Spark Theory

• Miller and Urey Experiment

• Spontaneous Generation theory

• Panspermia theory