Biological Evolution
What is called when you have a favored variation that survives?
Natural Selection -- survival of the fittest
What is the difference between a trace and mold fossil?
Trace fossils look at footprints and lifestyle
Molds are of the whole organism
What part of the crust moves around on a layer of magma?
Plate Tectonics
This definition states that the oldest layer is on the bottom while the youngest in on top.
Which microbe is the smallest and can only be prevented with vaccines, not treated with antibiotics?
A Virus
What is the most likely reason for a species to go extinct?
Environmental changes
what qualities do you need to become a index fossil?
- widespread/common over a short period of time
- distinct
What two pieces of evidence help with relative (estimated) dating?
law of superposition
index fossils
What two features will change how you read the layers for law of superposition?
intrusions and faults
What is the difference between a compound and a mixture?
Compounds are two or more ELEMENTS CHEMICALLY combined
Mixtures are two or more SUBSTANCES PHYSICALLY together
Why is it better to have a diverse group of animals? For example, why is it better to have 14 species of finches on the galapagos islands?
The more diverse the less likely they are to go extinct when changes happen.
The arm bones of a human and the arm bones of a bird can tell us what related anatomy?
homologous
This form of dating gives you an absolute or exact date of the rock layers and fossils.
radiometric dating
What layer would contain fossils that most resemble today's animals?
top layer
What is the difference between traditional and modern biotechnology?
Traditional biotechnology deals with the whole organism while modern looks at the cells and DNA.
What does the theory of evolution state?
The theory of evolution states that species will change over time because of their variations and adaptations.
If I have two index fossils in the same layer, but one is in North America and one is in South America, what can I infer about those two fossils?
They are the same relative age.
this type of rock will create your rock layers while this other type creates your intrusions.
sedimentary and igneous
What is the importance of studying ice cores?
They tell us about the atmosphere of past climates
what is another way to describe a solution?
hint: it is a type of mixture.
homogeneous
ALL TEAMS:
Using the following words create a cohesive sentence that explains biological evolution:
- variation
- adaptation
- environment
answers will vary; points will be awarded based on best to "still needs work" answers
If a fossil of an aquatic animal is found underneath the tennis courts behind KMS, what can we infer about the environment of the area previously?
It was once covered by water.
What is the difference between sedimentary and igneous rocks?
sedimentary is created through layering of sand and mud pressed down
igneous rocks are formed from intruding magma that cools on the surface
ALL TEAMS:
How do geologic and biologic evolution work together?
As the earth changes because of the plate tectonics and the rock cycle, organisms must also adapt to the changes. If organisms can't adapt, they will go extinct. If organisms continue to adapt, they will eventually make new speices.
What are fossils fuels and what can be some disadvantages of using them?
Fossil fuels are coal, oil, and gas.
When they are burned, they produce greenhouse gases like CO2.