Vocab
What is the means by which all of Earth's species have descended from a single ancestor?
What is Evolution?
What are useful pieces of of evidence that can be used to precisely determine sedimentary rock ages.
What are index fossils?
What are body parts that appear similar in separate lineages because they evolved in a common ancestor?
What are homologous structures?
How many years does an "Age" extend over?
What are several million years?
The scientist who proposed natural selection as the mechanism for evolution.
Who is Charles Darwin?
What refers to major evolutionary events that occur in groups of species over geological time, or millions of years.
What is Macro evolution?
What uses the predictability of radioactive decay to reveal the age of a fossil or other ancient object?
What is Radiometric dating?
What are body parts that have a similar function but did not arise from a common ancestor?
What are analogous structures?
Scientists use proxy data like ice cores and tree rings to indirectly study past conditions on Earth.
What is yes?
Traits that help an organism survive and reproduce in its environment.
What are adaptations?
What is change in allele frequency within a single species or population.
What is Micro evolution?
What is the time it takes for half of the atoms in a sample of radioisotope to decay?
What is Radiometric dating?
What are body parts that no longer have a function?
What are Vestigial structures?
How many years does an "Era" extend over?
What are several hundred million years?
The struggle between organisms to survive in a habitat with limited resources.
What is competition?
What are mineralized bones, teeth, shells, seeds, spores, or other long-lasting parts of an organism that lived in the past.
What are Fossils?
What is the result of Earth's features formed by a slow process?
What is gradualism?
Are mutations in a genomes sequence neutral? True or False
What is true?
Are there more or less than 250,000 known species fossils?
What are more?
The idea that organisms better suited to their environment are more likely to survive and reproduce.
What is natural selection?
What are footprints and other impressions, nests, burrows,trails, eggshells, or feces examples of?
What are Trace fossils?
What principle states that geologic processes that shape Earths surface such as erosion are the same today as they were in the past?
What is Gradualism?
Is the mitochondria in most animals inherited from one or both parents?
What is one parent?
This is how fossilization begins—when an organism dies and is quickly buried by sediment, protecting it from decay.
What is rapid burial by sediment?
Different versions of the same gene.
What are alleles?