Vocab
A living thing.
What is an Organism?
Order the layers from oldest to youngest.
Go to slide 2 of the Relative dating slideshow.
oldest -D, C, B, A - youngest
The trilobite fossils were likely rolled up for this reason.
What is rolling up for protection?
The longest era in Earth history.
What was the Precambrian era?
The process of producing offspring.
What is reproduction?
Specific characterisitc of an individual.
What is a trait?
Relative dating.
What is the estimation of a layer of rock's age based on placement?
The shell was found on a mountain top.
What is the mountain was once underwater?
This era had the first complex life.
What was the Paleozoic era?
Breeding organisms with specific traits in order to produce offspring with identical traits.
What is artificial selection?
The surroundings or conditions in which a person, animal, or plant lives or operates.
What is an enviornment?
Order the layers from oldest to youngest.
Go to slide 3 of the Relative dating slideshow.
oldest - B, C, D, E, A - youngest
The tree has one hundred forty rings. (what does that tell you)
How can you tell this tree is 140 years old?
Known as the age of mammals and is the current era.
What is the Cenezoic era?
A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
What is natural selection?
Chronological collection of life's remains in sedimentary rock layers.
What is the Fossil Record?
Order the layers from oldest to youngest.
Go to slide 4 of the Relative dating slideshow.
oldest - B, D, C, E, F, A - youngest
A type of absolute dating.
What is radiometric dating?
These animals existed during the Mezosoic era.
What were dinosaurs?
the most recent ancestral form or species from which two different species evolved.
What is a common ancestor?
Comparing physical characteristics of organisms to determine how related they might be.
Order the layers from oldest to youngest.
Go to slide 5 of the Relative dating slideshow.
oldest - C, B, A, D, E - youngest
The entire process of fossilization. (list the steps)
What is living organism, death of organism, burial of organism, dissolving of bones by water, mineralization, erosion exposes the bones.
The Cenozoic era started this many years ago.
What is 66 million years?
A trait that makes it more likely that an individual will survive in a specific environment
What is an adaptive trait?