Shrek has layers, and so do rocks!
In Exhibit A, what is the letter "E" representing?
A. Fault
B. Igneous Rock
C. Sedimentary Rock
A. Fault
What evidence did Wegener use to prove the theory of continental drift?
fossils across oceans, matching mountain ranges, etc.
What type rock will you find a fossil in?
Sedimentary
is survival of the fittest always the fastest, biggest, or smartest?
No, it all depends on the environment and if the organism is fittest for its niche it the environment
What is a mutation
a random genetic change in the DNA of an organism that can be passed down to its offspring
What is continental drift?
What is the theory that the continents used to be a supercontinent called Pangea and have moved due to the movement of the tectonic plates?
What type rock is created from an intrusion or extrusion?
igneous
What are the 3 requirements for an index fossil?
1. widely distributed
2. in only one layer of rocks
3. lots of the specific fossil
Explain analogous structures
what is different looking (wings on birds and wings on bat) structures that evolved independently in two living organisms to serve the same function (flying)
What is a variation?
The phenotypical trait that shows a mutation in a organism
What is the difference between relative age and absolute age?
What is relative age is when we use index fossils to date the rock layers around it, absolute age is when we use radioactive or carbon dating to find out the exact date of a fossil?
How do scientists use ice cores to help them understand the history of Earth?
They use the trapped bubbles and dust to tell them about the temperature, air quality, pollution, mass extinctions, etc.
analyze seasonal layers, chemical, and dust markers, enabling precise dating back thousands of years.
What is an example of a vestigial structure?
Ex. wisdom teeth, goosebumps, tailbone, etc.
What is non- random mating?
Using attraction to determine who you mate with, if no one mates with someone who has an unattractive trait, that trait will not be passed on
Which method of radiometric dating is used to find the age of living things less than 50,000 years old?
What is carbon dating?
How are fossils evidence of evolution?
What is they show us the progression of the evolution of organisms throughout Earth's History.
What is an extrusion? What is an intrusion?
An intrusion is when magma comes up through the crust from the mantle. An extrusion is when an intrusion break the surface and spews magma on the Earth's surface.
How are homologous and vestigial structures evidence of evolution?
they show us that all organisms have a single common ancestor
What are the five fingers of evolution?
Genetic drift, non random mating, mutation, gene flow, natural selection
Order the layers from the following diagram in order of youngest to oldest (please include the earthquake). See Exhibit B
I, B, F, earthquake, M, H, R
List and describe 4 types of fossils.
1. Cast and mold
2. petrified fossils
3. Amber encased fossils
4. frozen fossils
5. trace fossils
Use Exhibit C, if the grey trilobite is dated 450-340 mya and the yellow ammonite is dated 340-320 mya, what year did the snail shell have to exist?
340 mya
Explain how natural selection occurs.
The fittest for its environment survives to reproduce
What is genetic drift?
When a population shrinks and chance can take over, if a pandemic happens, the survivor's traits will represent the gene pool