What is a geologic timescale?
A model of events organized by major geological and biological events.
How are scientists able to get an exact age of a fossil?
By analyzing the radioactive decay of that fossil.
Compare relative and absolute time- chart
relative is approximate based on comparison; absolute is exact in minutes, days, seconds, years, etc..
Did mammals exists with Dinosaurs?
yes. Small ones similar to rats; Megazostradon
True or False? -Fossils are bones from long ago.
False- Fossils can form from bones, but the process of fossilization gradually transforms the bones—or other remnants of the organism—into rock.
How long would it take 250 grams of Carbon 14 to become 62.5 grams? (HLT 5,730) How many half lives have passed?
11,460 years; 2
Why is natural selection a mechanism for biological change? SEE IMAGE
It drives evolutionary change by passing on traits and becoming dominant version of species.
What is Karlamarie's favorite color?
turquoise
What is Karlamarie's favorite food?
tacos-I mean that is my favorite so why not?
What is one thing Karlamarie enjoys and is good at?
Acrylic Painting
Explain what is happening here:
SEE image
In this map, use the law of superposition to determine which rock is youngest
See image
