Evolution Exam, pt. 2

Front

What is the method used to determine the exact age of a fossil in years?

Back

Absolute dating.

Front

What is the term for the hypothesis that evolution occurs in rapid changes followed by long periods of stability?

Back

Punctuated equilibrium.

Front

What factor primarily contributes to the unique species found on islands, such as lemurs in Madagascar and koalas in Australia?

Back

Genetic isolation.

Front

Which kingdom do scientists believe the first forms of life on Earth belonged to?

Back

Archaebacteria.

Front

What type of bacteria were responsible for introducing oxygen into Earth's atmosphere?

Back

Cyanobacteria.

Front

What is the significance of genetic isolation in the evolution of species?

Back

It leads to the development of unique species due to limited gene flow.

Front

Define absolute dating in the context of paleontology.

Back

Absolute dating is a method used to determine the actual age of a fossil or rock in years.

Front

Explain the concept of punctuated equilibrium in evolutionary biology.

Back

Punctuated equilibrium is the theory that species evolution occurs in rapid bursts followed by long periods of little change.

Front

How does genetic isolation affect biodiversity on islands?

Back

Genetic isolation can lead to speciation, resulting in high levels of biodiversity unique to island ecosystems.

Front

What are archaebacteria and why are they significant in the study of evolution?

Back

Archaebacteria are ancient microorganisms that are believed to be among the first life forms on Earth, providing insight into early life and evolution.